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The classic Stroop test: pick the color of the text, not the word written.
10 rounds · 6 seconds per round · +10 per correct answer.
Color Test is a direct implementation of the classic Stroop test, and the whole game hangs on one instruction: name the colour of the ink, not the word that is written. A colour word appears on screen — RED, BLUE, GREEN — printed in an ink colour that may or may not match it. If the word RED is displayed in blue ink, the correct answer is blue. The written text is a distraction, and your job is to ignore it.
A session consists of ten timed rounds, each lasting six seconds. Pick the correct ink colour before the clock runs out and you score ten points; a wrong pick or a timeout earns nothing. The six-second limit is the real opponent, because the difficulty is entirely mental — you know what to do in theory, the test is whether your brain lets you do it quickly.
Reading is so automatic that the word reaches your mind before you decide anything about the ink, and your reflex is to report it. Named after psychologist John Ridley Stroop, this interference is a famous demonstration of selective attention and processing speed — so Color Test is not just a game, it is a well-documented quirk of the human mind.
Round four shows the word YELLOW written in red ink. Reading the word, your first instinct is to answer yellow, but the rule overrides that: the ink is red, so red is the only correct answer. The six-second timer is already running, so you tap red and bank ten points.
The next round shows the word BLUE written in blue ink. Here word and ink agree, so the answer is blue — effortless, because there is no conflict to fight. That contrast is the whole point: conflicting rounds make you pause while your brain resolves the clash; matching rounds feel almost instant.
Color Test keeps a constant rule, but the rounds are not equally hard. The most forgiving are matching rounds with no interference to fight. The tougher ones are conflicting rounds where the written word pushes against the ink — hardest of all are close cousins, such as GREEN printed in blue ink, where the two ideas sit near each other on the colour wheel.
There is no difficulty selector; the challenge comes from which rounds appear and how the six-second limit presses on them. What changes is you: the first session feels like a scramble because the interference is novel, while later sessions feel calmer as your brain learns to route around the reading reflex.
The most common mistake is answering with the written word instead of the ink colour. It happens to everyone at least once — you see YELLOW in red ink and the word escapes before you can suppress it. Treat that first error as a warning rather than a failure.
Another frequent error is hesitating on matching rounds. Players who just survived a conflict approach the next round with caution even when word and ink agree, wasting time on what should be an instant tap.
A subtle edge case is the near-timer miss: answering in the final second and not knowing whether it registered. A tap that lands after the cutoff counts as a timeout even if it was right.
Because reading is automatic. For fluent readers the written word is recognised faster than the ink colour, so it intrudes on your decision even when you know the rule — that intrusion is the Stroop effect itself.
Six seconds. Each of the ten rounds gives the same six-second window, and the correct colour must be picked before it expires.
In essence, yes. The original Stroop task asks people to name the ink colour of colour words, which is why this game is a genuine measure of selective attention and processing speed.
No. The words are colour names only and the ink is always from the game's colour set, so every round is a pure word-versus-ink conflict or match.
Yes. The interference weakens as you learn to attend to the ink, so scores climb across a few sessions even though the test never changes.