A color name appears in a different color. Does the text match the ink color? Answer fast — you only have 30 seconds.
Does the word match the ink color?
The Color Match Challenge is a free online Stroop test game that measures your cognitive processing speed. A color word (like "RED") appears written in a random ink color, and you must quickly decide whether the word matches the ink color. You have 30 seconds to score as many correct answers as possible. The game is based on the Stroop effect, a well-known phenomenon in cognitive psychology discovered in 1935.
A color name is displayed in a randomly chosen ink color. About 40% of the time the word matches its ink color, and the rest of the time it does not. Tap "Match" or "No Match" (or use the left and right arrow keys) to answer as quickly as possible. Correct answers add to your score and build a streak. Wrong answers break your streak. The game subtly speeds up as your score increases, making each additional point harder to earn.
The Stroop effect is a psychological phenomenon where reading a color word written in a conflicting ink color creates cognitive interference. For example, the word "RED" written in blue ink is harder to process. This game challenges you to override your automatic reading response and focus on the ink color instead.
Most first-time players score between 10 and 18 in the 30-second time limit. Experienced players can reach 25 or higher. The game increases in pace as you score more, so each additional point becomes progressively more difficult.
Focus on the ink color and try to ignore the text. Using keyboard shortcuts (arrow keys) instead of tapping can speed up your reaction time. Regular practice helps your brain build faster pathways for suppressing the automatic word-reading response.
If you enjoyed this, try these: Match the Color · Color Perception Test · Color Blind Test · Reflex Test
Last updated: March 2026 · whatifs.fun — Free interactive games, experiments & simulations