Find the swatch that exactly matches the target before your time runs out. Rounds get harder fast — and Stroop mode makes it hard on purpose.
Distractor swatches sit only a few shades away from the real match, so you have to look closely.
Every round trims a little off the clock and can add more swatches to scan.
Match a color name instead of a swatch, printed in a deliberately mismatched ink color.
Three lives, a shrinking clock, and one exact match per round.
Telling two very similar shades apart under time pressure is a genuine visual discrimination task, and it gets measurably harder as the color differences shrink and the clock speeds up. It's a fun stand-in for how designers, photographers and printers have to judge color match by eye every day.
Hard mode borrows the classic Stroop effect: naming or matching a word is slower and more error-prone when the word's meaning conflicts with the color it's printed in, because your brain reads the word automatically before it can suppress that response and focus on the actual instruction.
As your score climbs, the distractor swatches are generated with smaller hue and lightness differences from the target.
Time pressure is what turns an easy matching task into a genuine reaction and attention test.
In hard mode the ink color actively fights the word's meaning, forcing you to consciously override your first instinct.
Most players get noticeably faster at spotting subtle shade differences after just a few rounds.
Questions about hard mode, difficulty and scoring.
Instead of a plain swatch, the target is shown as a color name printed in a different ink color. You have to click the swatch matching what the word says, not the color it's printed in — the classic Stroop effect.
Each round shrinks your time limit slightly and can add more candidate swatches with smaller color differences between them, so spotting the exact match takes sharper attention.
A wrong click or a timeout costs one of your three lives. Lose all three and the round ends, showing your final score.
No. Your best score is saved only in this browser's local storage on this device and is never uploaded anywhere.
Yes. Tap any swatch the same way you would click it with a mouse, and the grid resizes to fit smaller screens.