Color Reaction Time Test
Test your color recognition speed. Click ONLY when you see GREEN!
Color Reaction Test
Click ONLY when the screen turns GREEN
About Color Reaction Test
A color reaction test measures selective attention—your ability to respond to a specific stimulus while ignoring others. You must click when the screen turns green, but resist clicking for red, yellow, or blue.
This adds a cognitive layer that simple reaction tests don't have. Your brain must identify the color before deciding whether to act.
Average Color Reaction Time
Color reaction tests typically produce times 30-50ms slower than simple reaction tests due to the discrimination requirement. Average scores range from 250-350ms.
Accuracy is equally important—a fast time with many false clicks indicates impulsive responding rather than good performance. Aim for both speed and 90%+ accuracy.
Tips for Better Accuracy
Start slow and build speed gradually. If you're clicking wrong colors, you're anticipating rather than reacting. Wait until you're certain it's green.
Good lighting matters—color perception is affected by screen brightness and room lighting. Make sure you can clearly distinguish between the colors.
Color Reaction Time Benchmarks
Frequently Asked Questions
What is color reaction time?
Color reaction time measures how quickly you can identify a specific color and respond to it while ignoring other colors. It tests selective attention and color discrimination speed, typically 30-50ms slower than simple reaction tests.
What is the average reaction time in ms?
The average human visual reaction time is 200-250ms for simple tests. For color reaction tests requiring color discrimination, average times are 250-350ms. Elite performers achieve under 200ms consistently.
What color has the fastest reaction time?
Research shows red and green typically produce the fastest reaction times because they stimulate dedicated cone cells in the eye. Yellow is also fast. Blue tends to be slightly slower as blue-sensitive cones are less common.
Does eye color affect reaction time?
Eye color itself doesn't significantly affect reaction time. However, certain eye conditions and color vision deficiencies (colorblindness) can impact color discrimination speed. Light sensitivity may vary slightly by eye color.
How to improve reaction time?
Practice color discrimination games regularly, ensure good lighting when testing, get adequate sleep, stay hydrated, and minimize distractions. Start slow to build accuracy, then gradually increase speed. Consistent 10-15 minute daily sessions show the best improvement.
Does colorblindness affect this test?
Yes, especially red-green colorblindness (affecting ~8% of men). If you have difficulty distinguishing green from red or other colors, this test may produce inaccurate results. Color blind glasses may help some users.
What is reaction time by age?
Reaction time peaks in your early 20s (~200ms) and gradually increases with age: 30s (~220ms), 40s (~240ms), 50s+ (~260ms+). Regular practice can offset age-related slowing by maintaining neural pathways.
Why do reaction times differ for different colors?
Different colors stimulate different cone cells in your retina. Green and red activate dedicated cones, producing faster signals. The brain processes colors through separate neural pathways, causing slight timing variations between colors.