Paint the chameleon to match the part of the painting it's sitting on — from memory.
Ready when you are
Chameleon is a five-round camouflage game played on top of a painting. Each round opens with the full picture on screen for a few seconds. Then a chameleon climbs onto it — pure white, covering a patch of the canvas — and the missing part exists only in your memory. You get a brush and the painting’s own palette, and your job is to repaint the body so the picture looks whole again. When you lock it in, the outline and the googly eye fade away, and you find out whether your chameleon disappears or gets caught.
The catch is that you are recreating colors you can no longer see. The rest of the painting stays visible around the body, so you have edges to line up against, but the covered patch itself is gone. If the boundary between the sky and the hills ran through the middle of the chameleon, you have to remember where — and paint both colors on the right parts of the body.
If this mechanic feels familiar, it is the skill at the center of Meccha Chameleon, the hide-and-seek game where players paint a white body to melt into walls and props while seekers hunt for anything slightly off. Strip away the multiplayer and what remains is a pure perception test: can you produce, from memory, a color accurate enough that a human eye slides past it? This variant is that test in your browser. If you play the real thing, our guide on how to get good at Meccha Chameleon explains why the eyedropper alone won’t save you — and this game is the drill it prescribes.
Work big to small — the 45-second clock punishes perfectionists. Block in each area with its main color first — the broad fields matter far more to your score than any detail — and only then tidy the boundaries. Use the visible painting as your reference: the wall of color running into the left edge of the body is the same color that continues behind it. Match the average of an area rather than its brightest speck, and when a boundary crosses the body, spend your effort getting its position right. A slightly wrong color in the right place beats a perfect color in the wrong place.
Most players find their remembered color drifts lighter and more saturated than the real thing — memory keeps the idea of the color and quietly drops the muddiness that made it sit naturally in the scene. On top of that, the colors around the body push your judgement while you paint: the same green reads warmer against blue water and cooler against a yellow sky. That effect is called simultaneous contrast, and its partner in crime is color constancy, the brain’s habit of correcting colors for the light it assumes is falling on them. Both are why a patch that felt obviously right turns obviously wrong the moment the answer appears.
The patch under the chameleon is sampled in three areas. In each one, the color you painted is averaged and compared with the color the painting actually has there, using CIEDE2000 — the perceptual color-difference measure this whole site scores with, explained in what CIEDE2000 measures. The three comparisons average into a 0–10 round score, so a perfect round means every part of the body matched, not just most of it. Five rounds, five different painting styles, 50 points on the table.
Chameleon leans on two skills you can train separately. Holding a color in your head is the core color memory game and its harder cousin Blind Sliders. Steering a color to a target is the Color Mixer. And the seeker’s side of the bargain — noticing the patch that doesn’t belong — is Spot the Difference. Rotate through them and watch your Chameleon scores climb. And it plays multiplayer too: create a room, share the code, and everyone paints the same chameleon on the same painting — best camouflage each round wins.
