Guides & colour-science explainers
Long-form pieces on how the game works and how human colour vision works. Skim them between rounds, or read one through for a deeper feel for the game.
- 22 September 2026·12 min read
The ugliest color in the world, measured: Pantone 448C is #4A412A
The world's ugliest color was picked by asking a thousand smokers, not by measuring anything. So we measured it. Pantone 448C is 3.4 just noticeable differences from the brown that sells coffee, and the entire hue circle at its lightness and chroma is narrower than a single step from it to navy blue.
- 21 September 2026·12 min read
The blackest black, measured: Vantablack is #010101
Every article about the blackest black is illustrated with a photograph of it, displayed on a screen whose own black is a medium dark gray. We measured how far off that is. In an ordinary lit room a phone showing pure black reflects 120 times more light than Vantablack, and lands within 1.77 units of ordinary black paint from a tin.
- 19 September 2026·12 min read
What color is magenta: the one screen color with no wavelength, measured
Every wavelength from 380 to 446 nm renders as exactly #FF00FF on a screen, because deep violet falls outside sRGB and the green channel clips at zero. So the only magenta in a picture of a rainbow is the place where the screen gave up. Meanwhile 22.81 percent of the colors your monitor can show have no wavelength at all.
- 18 September 2026·13 min read
What color is indigo: eight hex codes, one rainbow band, measured
The rainbow's indigo renders as #7F00FF, the dye that named it is #00416A, and CSS calls something else entirely by the same word. Those three are 18 to 26 CIEDE2000 units apart. Along the way the measurements answer why nobody can find indigo in a real rainbow: it gets a fair tenth of the bow's width and returns 1.4 percent of its color.
- 17 September 2026·14 min read
Planet colors: all nine measured from published albedo spectra
Nine planets, nine hex codes, all of them measured rather than remembered. The most colorful object in the solar system is Mars at chroma 22, which 91 percent of the colors on your screen beat. Uranus and Neptune are indistinguishable, Jupiter and Pluto are closer still, and the only genuinely blue planet is the one you are standing on.
- 16 September 2026·15 min read
Color psychology, measured: the chart's blue is one blue out of thousands
Every color psychology chart does the same thing: a swatch, a word, an emotion. The largest study behind those charts asked 4,598 people in 30 nations about color words and never showed them a color at all. So I measured the gap. A color word turns out to cover tens of thousands of distinguishable colors, the words overlap badly enough that one hex code is filed as red, purple and pink, and the one pattern that does hold across all 30 nations is not about hue.
- 15 September 2026·16 min read
The color wheel: measured, and it is not a circle
The color wheel is drawn as a circle with twelve equal slices. I built it from a published paint-mixing model and measured every spoke. The gaps between neighbours range from 2 degrees to 85, a quarter of the circle is missing entirely, and red and green sit about 94 degrees apart rather than 180. The surprise was which wheel came out worse: the one in your software.
- 14 September 2026·15 min read
The rarest eye color, and why no iris can make green
Nobody has blue pigment in their eyes, and nobody has green pigment either. I built the iris out of published optics and swept the one pigment it actually contains. The result is a single line from blue through grey to brown, 16 distinguishable colors long, that stops 18 degrees of hue short of the least green color English has a word for.
- 13 September 2026·15 min read
What color is the moon: measured from Apollo soil upward
The moon is #6A6057, a 12 percent grey that leans yellow by about two JNDs. It has never once been orange. I measured the reddening the atmosphere adds at every elevation, found the exact altitude where it becomes visible, and worked out why a blood moon has a turquoise rim.
- 12 September 2026·15 min read
Why are plants green: the color is the light they let go
The greener a leaf looks, the less light it is catching. That relationship is monotonic across the whole real range of chlorophyll loads, and it means green is the visible signature of failure to absorb rather than a color the plant selected. Chlorophyll's own color, measured in solution, sits 34 degrees of hue away from the leaf it lives in.
- 11 September 2026·14 min read
What color is blood: measured from the hemoglobin up
Two questions, one answer. Blood is red at every oxygen level there is, and the difference between arterial and venous is 54 percent lightness. The vein in your wrist is a grey-brown patch at hue 88 degrees, nowhere near blue. What is blue is the direction it drags the skin around it, which my model puts at 262 degrees, half a degree off the hue angle of steel blue.
- 9 September 2026·15 min read
Why are flamingos pink: measured from the pigment out
Every answer online stops at "they eat shrimp". I built a spectral model of a flamingo feather instead and measured it. Pink turns out not to be a hue at all: across a billion-fold change in pigment loading the hue moves 24 degrees while the saturation moves 57 times, which means pink and blood red are the same color at different strengths.
- 8 September 2026·16 min read
Why do leaves change color: measured from the pigments up
Yellow is an unmasking and red is a new build. I tested both claims by running a leaf radiative transfer model across 2.6 million pigment combinations: no anthocyanin-free leaf gets closer than 22.12 CIEDE2000 units to a red maple, while removing chlorophyll from a summer leaf lands on gold every time.
- 7 September 2026·15 min read
Rainbow colors in order: rendered from raindrops, and measured
The order is real and it never changes. The seven bands are a naming convention that the sky does not honour. I rendered a rainbow from the refractive index of water and measured what it puts in each place: a vivid red to yellow outer edge, and an inner half that is a pale wash carrying more than half the light at a mean purity of 14.5 percent.
- 6 September 2026·14 min read
Why are sunsets red: the measured answer, orange to purple
A sunset is the same physics as a blue sky, run at thirty-five times the path length. I built it from the reference spectrum and measured every step: the setting sun at #FF8E00, the sky above it at #FFC18B, a genuine purple seam at 30 degrees, and a twilight that would be dirty orange instead of blue if the ozone layer were not there.
- 5 September 2026·13 min read
Why is the ocean blue: the measured answer, and the sky's share of it
The ocean is not blue because it reflects the sky, and it is not blue because of Rayleigh scattering either. Water absorbs its own red. I built the color from the measured absorption spectrum: the open sea renders at #030951 with a dominant wavelength of 465.5 nm, a swimming pool renders at #9BDFED, and the two are 85.6 degrees apart in hue while being the identical substance.
- 4 September 2026·12 min read
Why is the sky blue: the measured answer, and the violet problem
Rayleigh scattering explains the hue and nothing else. I rendered the sky from the reference solar spectrum and it comes out #A3C5FF at 17,258 K, only 29.2 percent saturated, with a dominant wavelength of 476 nm that haze cannot move by a single nanometre. The violet is there. Your eye simply does not report it.
- 3 September 2026·13 min read
What color is the sun: the measured answer, hour by hour
The sun is white. That answer is everywhere and it never comes with a measurement, so I built the sun out of the reference solar spectrum and rendered it at every solar angle: #FFF2EF in space, #FFEEDF overhead, #FF4E00 on the horizon, and a sky that is the missing blue to within 0.73 CIEDE2000.
- 2 September 2026·12 min read
The Munsell color system: I measured whether its equal steps are equal
Two chips in the Munsell book, 7.5RP 9/2 and 10RP 9/2, are officially one hue step apart. They measure 0.66 CIEDE2000, which is a quarter of the smallest difference a careful eye can find. Across all 7,249 adjacent pairs the value axis never once fails, while the hue axis is invisible 82 percent of the time near neutral and the chroma axis is invisible almost every time past chroma 16.
- 1 September 2026·13 min read
Red-green color blindness: the two types do not see the same colors
Two people can both be red-green color blind and see #FF0A73 as two colors 33.4 CIEDE2000 apart, one a cool slate, the other a warm khaki. Across the sRGB cube the two types differ from each other by more than a just noticeable difference for 80.7 percent of all colors. The name hides a bigger split than it describes.
- 31 August 2026·12 min read
Tritanopia: what blue-yellow color blindness actually takes away
I simulated all three dichromacies over the sRGB cube. Tritanopia turns pure yellow into #FFF0F3, a white with a pink cast, and leaves cyan almost untouched at 2.9 CIEDE2000. It also keeps nearly twice as many distinguishable colors as red-green blindness while confusing more pairs at matched lightness, which sounds contradictory until you look at what the surviving axis is doing.
- 30 August 2026·11 min read
What color is a mirror: the measured answer, with the hex code
Most answers to this question stop at white, or at a vague slight green. I wanted a number, so I built an ordinary mirror out of published optical constants and rendered its color: #F1F8F7, 92.87 percent reflectance, 3.69 CIEDE2000 off neutral, and a tunnel that turns cyan by the twentieth bounce.
- 29 August 2026·11 min read
What color is the dress: the answer, and the measurement behind it
The garment is blue and black, and you can buy it. The interesting question is why the photo splits people so cleanly, so I ran the numbers over the whole of sRGB. More than a third of every color your screen can show is dress-ambiguous, and the pale washed-out ones are worst of all.
- 28 August 2026·12 min read
Color temperature chart: what every Kelvin value actually looks like
Every lighting site publishes the same orange-to-blue strip, and almost none of them say where the colors came from. I generated the strip from the physics instead, and three things fell out that the catalogue versions get wrong.
- 27 August 2026·12 min read
RGB vs CMYK: how much color a printing press actually loses
The standard advice is design in RGB, convert to CMYK at the end. Nobody tells you what the conversion costs. I measured it against the real ink standards, and the answer is that a press throws away 47 percent of sRGB, takes a third of the saturation with it, and quietly prints some colors your monitor has never shown you.
- 26 August 2026·13 min read
What is metamerism: why two colors match in one light and split in another
You hold two swatches up in the shop and they are the same color. You get them home and they are not. Nothing changed about the paint, only the light. Metamerism is the reason, and measuring it shows the gap is usually four times larger than the smallest difference an eye can see.
- 25 August 2026·12 min read
Is photographic memory real? What happens when you test it on color
Eidetic memory has a real research literature and photographic memory mostly has anecdotes. The cleanest way to tell them apart is to test on something that words cannot carry. Measured in CIEDE2000, ordinary color recall lands roughly 200 times less precise than the photographic standard, and the gap depends enormously on which color you were shown.
- 22 August 2026·12 min read
Why spot the difference is so hard: it is a search problem, not an eyesight problem
The difference in a spot the difference puzzle is almost always big enough to see. The problem is that you have to be looking at it, and attention is a spotlight roughly one grid cell wide. Measurements from our own Spot the Difference variant, plus fifty years of change blindness work, explain why the puzzle beats people who have perfect eyesight.
- 21 August 2026·14 min read
Just noticeable difference: the color threshold everyone quotes is three numbers, not one
Weber gave psychology its first law, and the just noticeable difference is what fell out of it. Applied to color it produces a number people quote with far more confidence than it deserves. Measuring it directly across the sRGB gamut gives three different answers depending on which way you move, and the research says the threshold is a slope rather than a wall.
- 20 August 2026·13 min read
Aphantasia and color memory: what a color costs when all you keep is its name
If you cannot picture a color, you are left with its name. So how much color does a name actually carry? Partitioning the sRGB gamut across the eleven basic color words puts the answer at 17.9 CIEDE2000, and the scaling law that follows says no vocabulary in any language gets close to what an eye does.
- 18 August 2026·15 min read
Shades of teal: 54 names, hex codes, and why teal is measurably a green
Teal is filed as a blue almost everywhere you look. Measured on hue alone it is nothing of the kind: it sits 24.8 degrees on the green side of the midpoint between green and blue. What makes it read as blue is not its hue but its darkness, and the same trick explains the whole teal, turquoise and aqua vocabulary, which turns out to be one hue wearing three lightness levels.
- 17 August 2026·15 min read
Shades of gray: 51 names, hex codes, and the color that is not actually neutral
Gray is supposed to be what is left when you take the color out. Measured, the vocabulary says otherwise: 30 of the 51 named grays carry a tint, the cool ones outnumber the warm ones nearly two to one, and they carry twice the chroma when they do. English does not have a word for colorless. It has a word for slightly blue.
- 15 August 2026·13 min read
Color mixing chart: the paint chart, the light chart, and the one your software gets wrong
Every color mixing chart online says blue and yellow make green. No digital color mixer agrees: averaging those two hex codes gives dead grey, chroma exactly zero. Across 500,000 random pairs, 84% of hex-average mixes land a visible distance from the physically correct answer. Here is what is going wrong, and the one-line change that fixes it.
- 13 August 2026·12 min read
Opponent Process Theory: what it explains, and why inverted colors are not afterimages
Every image editor has an invert button, and people reach for it to predict an afterimage. Across 632,808 colors, that inverted color sits a median CIEDE2000 of 30.5 away from what opponent theory actually predicts. Three quarters of the gap is one mistake, and it takes one step to fix.
- 12 August 2026·12 min read
The Farnsworth-Munsell 100 Hue Test: how it works, and the flaw in most browser versions
The clinical test spaces its caps so every step is about the same size to the eye. Step the sRGB hue wheel by the same amount and the perceptual size of that step swings from 0.15 to 7.33. Around a fifth of the circle, you would need four caps in a row before the difference became visible at all.
- 11 August 2026·11 min read
Personal color analysis: what draping measures and what it does not
Twelve season names sounds like taxonomy for its own sake. It is not. Every one of them is a coordinate on three axes, and once you can name your position on each axis the season is just the label printed on that spot.
- 11 August 2026·9 min read
Do color blind glasses work? What the filters actually do
The viral videos are real, and so is the effect. What the glasses do not do is restore normal colour vision, and the group they help least is the group most likely to buy them. The difference comes down to whether you have two overlapping cone signals or only one.
- 11 August 2026·16 min read
Shades of brown: 68 names, hex codes, and the family that turns the color down
Taupe is the shade everyone calls a cool brown and caramel is the one everyone calls warm. Measured, taupe sits 14.8 degrees closer to yellow than caramel does. The temperature people hear in those two words is not a hue difference at all, it is a chroma difference of four times over.
- 10 August 2026·15 min read
Shades of yellow: 85 names, hex codes, and the family with no dark end
Olive is not a green. Convert #808000 to CIELAB and its hue angle is 102.9 degrees, the same number you get from pure yellow #ffff00, to one decimal place. Same hue, half the light, different word. Yellow is the only family in this series that hands over its entire dark half to another vocabulary.
- 9 August 2026·15 min read
Shades of orange: 75 names, hex codes, and the measured floor at L* 44
Every other color family has names running into the dark. Red has maroon at L* 19, blue has navy at L* 13. Orange stops at 44 and refuses to go further. Measure the browns and you find out why: they sit at the same hue as the oranges, 2.7 degrees apart, and differ only in how much light they reflect.
- 8 August 2026·14 min read
Shades of pink: 77 names, hex codes, and the measurement showing pink is not light red
Everyone repeats that pink is just light red. It is a claim you can test in about four lines of code, so I tested it. Lightening #ff0000 produces #ff7353, then #ffa088, then #ffc8b9. That is coral, salmon and peach. The pink ramp starts 40 degrees away, at a hue red never passes through.
- 7 August 2026·14 min read
Shades of purple: 86 names, hex codes, and the measurement showing every light purple is a faded one
Lavender, lilac, mauve, periwinkle, thistle. The light end of the purple vocabulary is unusually crowded, and the measurement explains why. Of 86 named purples, the 14 that sit above L* 70 average a chroma of 23. There is no bright vivid purple in sRGB to name, so the language named the faded ones instead.
- 6 August 2026·14 min read
Different shades of green: 80 color names, hex codes, and the measurement showing why the middle of green is the flattest ground on the color wheel
Sage, emerald, viridian, phthalo. Green color names spread across 127 degrees of the color wheel, more than four times the arc the red names occupy. That is not a richer vocabulary. It is a vocabulary compensating for the fact that a 34 degree stretch in the middle of green looks like one color.
- 5 August 2026·13 min read
What are the primary colors? RYB, RGB and CMY measured, and why the school answer reaches only half the color wheel
Red, yellow and blue reach 50.3 percent of the saturated color wheel. Everything from chartreuse through green and cyan to azure is outside what they can make. Here is the measurement, the two mixing operations that decide which three colors count as primary, and why artists still get green out of blue and yellow.
- 4 August 2026·12 min read
Shades of red: 65 names, their hex codes, and the measurement showing they are a brightness ladder, not a range of hues
Crimson, scarlet, vermilion, carmine. The shades-of-red lists read like a range of hues and measure like a brightness ladder. All 65 names fit inside 58 degrees of the color wheel, and what separates them is how dark and how vivid they are, not which red they are.
- 2 August 2026·12 min read
Shades of blue: 67 names, their hex codes, and the measurement showing only 18 are different enough to remember
The shades-of-blue lists are not padding as much as people assume. Measured pairwise, 62 of 67 named blues clear the just-noticeable-difference threshold. The catch is that side-by-side vision is not the sense anyone actually uses them with, and at memory tolerance the list drops to 18.
- 1 August 2026·13 min read
Warm and cool colors: the lists, the hex codes, and the measurement showing the wheel does not split in half
Every color wheel splits warm from cool down the middle. Measured against the Planckian locus, the actual thing color temperature refers to, the warm side runs 208 degrees and the cool side 152, and 100 of the 360 hues are filed on the wrong side.
- 31 July 2026·14 min read
Color theory, measured: where the wheel is honest and where it quietly lies
The color wheel treats twelve hues as evenly spaced. Measured against the eye, the steps between them range from ΔE 5 to ΔE 44, an eight-fold spread. Here is what color theory gets right, where the geometry stops matching perception, and a rebuilt wheel whose twelve stations actually are even.
- 30 July 2026·12 min read
Tetradic colors: four hues, six relationships, and one of them is always the weak link
Four colors 90 degrees apart look perfectly even on the wheel. Measured, the average square tetrad contains one pairing under ΔE 40, and the average triad contains none. Adding the fourth color does not widen the palette, it adds a weak spot.
- 29 July 2026·12 min read
Monochromatic colors: one hue, five swatches, and a contrast budget that changes with the hue you picked
Every guide gives the same monochromatic recipe: pick a hue, make five evenly spaced swatches. Measured across all 360 hues, that recipe produces a palette spanning ΔE 71 in green and ΔE 28 in blue. Same instructions, a quarter of the result.
- 28 July 2026·12 min read
Split complementary colors: the scheme is a detuned triad, and the measurements prove it
Split complementary is sold as the safe version of a complementary pair. Measured, the two split colors sit an average of ΔE 41 apart, barely half the distance to the base, and in a quarter of all rotations they are close to indistinguishable.
- 27 July 2026·13 min read
Tertiary colors: the six, the other three, and why none of them are halfway
A tertiary color is supposed to be halfway between a primary and a secondary. I measured all six of them against their parents. Not one is halfway, and the worst is three and a half times nearer one side than the other.
- 26 July 2026·12 min read
Triadic colors: the triangle, the examples, and why it is never equilateral
A triadic scheme is three colors spaced evenly around the wheel. Every guide draws it as an equilateral triangle. I measured the sides, and in half of all triads one of them is barely half the length of another.
- 25 July 2026·11 min read
Analogous colors: the sets, the schemes, and the trap in the wheel
Analogous colors are neighbors on the wheel. The usual advice is to pick three of them and stop thinking. That advice fails in the greens, and there is a number that shows exactly why.
- 20 July 2026·10 min read
What colors make brown? Every recipe, and why brown is really dark orange
Brown is the color everyone can mix and nobody can point to in a rainbow. That is not a coincidence. Once you see what brown actually is, every mixing recipe stops being a thing to memorise and starts making sense.
- 13 July 2026·10 min read
Complementary colors: what they are, and why your own eye proves them
Most guides treat complementary colors as a design rule you have to memorise. It is easier than that. Stare at a green square for thirty seconds, look away, and your own retina will hand you the answer.
- 9 July 2026·7 min read
How to play Meccha Chameleon on a Mac: one official route and four backups
The Steam page lists one operating system, and it is not yours. Five routes fix that: GeForce Now with the developer's blessing, CrossOver, Parallels, Boot Camp on Intel machines, or streaming from a PC in the next room. Setup steps for each, and a straight answer on which to pick.
- 6 July 2026·8 min read
What colors can dogs see? Blue and yellow, not black and white
The idea that dogs see only black, white, and grey is one of the most repeated pet facts there is, and it is wrong. Dogs see color. They just see less of it than you do, built from two cone types instead of three, which turns their world into blues, yellows, and a wide grey band where your reds and greens used to be.
- 29 June 2026·10 min read
Are you a tetrachromat? Why the viral color-counting test can't tell you
The quiz that tells you to count the bands in a color strip and report whether you are a tetrachromat is measuring your monitor, not your eyes. A screen emits only three primaries, so it physically cannot show the extra colors a fourth cone would reveal. Here is what tetrachromacy actually is, how scientists test for it, and what an online color game can honestly tell you about your color vision.
- 28 June 2026·11 min read
How to get good at Meccha Chameleon: the paint-and-color guide that trains your eye
Meccha Chameleon is one skill wearing a costume: matching a color to its surroundings well enough to vanish. Most guides tell you where to hide. This one trains the eye that makes the paint convincing, the part nobody else is teaching.
- 22 June 2026·9 min read
What color do two colors make? Paint and screens give different answers
Ask what red and green make and you get two correct answers that contradict each other. Paint says brown, your screen says yellow. The split is not a trick question, it is the difference between subtractive and additive mixing, and once you see it the whole color wheel stops being confusing.
- 15 June 2026·8 min read
Is black a color? Is white a color? It depends which definition you pick
Physics says black is the absence of light and white is all of it. Your visual system disagrees, and so does every color model your screen runs on. The argument is really about which definition of color you are using.
- 8 June 2026·8 min read
Color illusions: when your eyes report a color that was never there
Two people look at the same photograph and swear it shows different colors. Neither is lying. Color illusions are the cleanest proof that seeing a color is an act of inference, not a readout.
- 5 June 2026·7 min read
Cartoon characters and color: the memories you trust but still get wrong
You can name a cartoon character's color in a heartbeat. Reproducing the exact shade is a different test, and one most people fail by making it brighter than it ever was.
- 4 June 2026·7 min read
How long can you remember a color? It doesn't fade, it drops dead
Watch a color, wait, reproduce it. You expect the memory to soften the longer you hold it. It mostly doesn't. It holds full resolution for a few seconds and then disappears in one step, and that single fact changes how you should play.
- 3 June 2026·6 min read
Guess the flag by its colors: why you know the shape but not the shade
Naming a flag is recognition. Reproducing its colors is recall, a different and harder task. Here's the gap between the two, flag by flag, and the game that measures it.
- 3 June 2026·10 min read
Do brain games actually work? What the science says
The honest answer is that most brain games make you better at the brain game and almost nothing else. But there is one narrow exception the marketing never mentions, and it happens to be the thing a color game trains. Here is the difference between near transfer and far transfer, and where this game honestly sits.
- 2 June 2026·9 min read
What is color constancy? Why your brain ignores the light
Color constancy is your brain discounting the light so a banana stays yellow at noon and at sunset. It is a brilliant piece of engineering, and it is also why a remembered color is never quite the color that was there. Here is the mechanism, the famous case where it broke the internet, and what it means for anyone trying to match a shade.
- 1 June 2026·8 min read
Why you see colors that aren't there: afterimages explained
The green ghost you see after staring at red is not a trick of the light. It is the opponent-process machinery of your own retina, briefly stuck. Understanding why explains afterimages, why two colors can shift each other, and why staring at a color is a poor way to remember it.
- 31 May 2026·8 min read
How many colors can the human eye see?
Ten million is the number everyone repeats, but it was never really measured. The careful estimates land lower, the theoretical ceilings land far higher, and the most interesting gap is between the colors you can see and the handful you can hold in your head.
- 30 May 2026·8 min read
How to read a hex color code by eye
#f59e0b looks like a string of nonsense until you know the trick: it is three numbers stacked together, one for each light in your screen. Learn the pattern and you can read a color's hex code the way you read a clock.
- 29 May 2026·8 min read
The Stroop effect: why you read the word before you see the color
Show someone the word RED printed in blue ink and ask for the ink color. They stumble. Reading is so automatic that the meaning of the word arrives before the color does and gets in the way. That tiny delay has its own century of research behind it.
- 28 May 2026·7 min read
Memory colors: why a gray banana still looks yellow, and what it does to your score
Show a person a gray banana on a neutral background and they will see it as slightly yellow. The brain pastes the remembered colour of a banana onto the raw signal. The same machinery quietly bends every guess you make in a color memory game.
- 27 May 2026·7 min read
Color memory test: what your score actually says about how you remember color
Tile-match recall, hue-ordering, and exact-colour reproduction all show up under the same search term. They are not the same test and a strong score on one says almost nothing about the others.
- 15 May 2026·4 min read
Color Wordle: is there a Wordle for colors, and what would one look like?
“Color Wordle” is one of the most searched terms in this category, but the format barely exists. Here is what one would actually look like, and how close our Daily challenge gets.
- 15 May 2026·4 min read
Color memory vs color matching: what each one actually tests
People search for “color memory game” and “color matching game” almost interchangeably. They are not the same thing, and the difference matters if you want to train.
- 15 May 2026·5 min read
Color matching games for adults: what makes one actually challenging
Most color matching games stop being interesting the moment you can tell the colors apart at a glance. For an adult that’s round one. These are the ones built for the rest.
- 15 May 2026·6 min read
Color match games online: the categories, the good ones, and what to skip
Most search results for “color match game online” throw you into the same five Flash-era pages. The category is actually wider than that, and the good ones train very different skills.
- 9 May 2026·8 min read
How to train your eye for color: drills used by designers and photographers
A reliable colour eye isn't something you're born with. It's a habit, and these are the drills professionals actually use. They fit into ten minutes a day.
- 9 May 2026·8 min read
What is CIEDE2000? The color difference formula behind our scoring
Most colour games score guesses by comparing RGB values. That gives you a number, but it's the wrong number. Here's why we use CIEDE2000 instead, and what it actually measures.
- 9 May 2026·7 min read
The science of color memory: why your brain forgets the orange you just saw
The four-second flash feels like plenty of time. Then you reach for the sliders and realise you can't pin down whether it was teal or seafoam. Here's why.
- 9 May 2026·22 min read
Every Color Memory Game variant explained: a complete how-to-play guide
Twenty-five game modes built around one obsession: how well you see, remember, and recreate colour. This is the long-form rulebook for every variant: what it tests, how scoring works, and what actually works to score well.