Guess the color
Every mode on this site is some form of the same dare: here is a color — can you guess it? The classic game flashes a shade for four seconds, takes it away, and hands you three sliders to rebuild it from memory. No multiple choice, no color names to lean on. Just your eye against a scoring formula that knows exactly how far off you were.
That makes it a harder, more honest color guessing game than the pick-the-right-swatch quizzes you may have played. Guessing a color you can still see is a discrimination task. Guessing a color that is gone is a memory task, and human color memory is famously overconfident — most people hold a color reliably for a few seconds before the shade drifts. The game measures that drift, puts a number on it, and lets you train it down.
Six ways to guess the color
A color fills the screen for four seconds, then vanishes. Recreate it from memory with three sliders. Five rounds, fifty points.
One puzzle per day, the same five colors for everyone on Earth. Post one score, keep the streak alive, compare percentiles.
See a swatch, guess its hex code — or see a code and guess the swatch. The mode for developers and designers who think in #RRGGBB.
A shade appears with four names — pick the one that actually belongs to it. Starts at red, ends somewhere around gamboge. One miss ends the run.
Pick a celebrity-styled bot and guess the same colors it does. Each bot has its own bias — beat its eye to claim the win.
Head-to-head against a real opponent on identical colors. Same flash, same sliders, no excuses. Rooms let you bring friends.
How to guess colors more accurately
Strong color guessers all do a version of the same three things. They name the color during the flash — a quick verbal label like “dusty teal, fairly dark” survives in short-term memory far longer than a wordless impression. They dial hue first, because the color family is worth more points than saturation and brightness combined. And they stop adjusting once the preview feels right, because late second-guessing drifts away from the remembered shade more often than toward it.
If you want the deeper material, we’ve written up the science of color memory, how long a color actually survives in your head, and the drills designers use to train their eye. Prefer matching to guessing? The color matching game keeps the target on screen and tests pure discrimination instead.