Free Color Blind Test
Check your color vision online in about two minutes.
- No signup required
- Instant results
- Mobile friendly
How to Prepare for the Test
- Increase brightness
- Disable blue-light filtering if possible
- Avoid glare
- Use normal room lighting
- Remove tinted glasses
- Normal prescription glasses are fine
Take the Color Vision Test
20 original questions: hidden numbers and shapes, odd-tile spotting, colored paths and color matching. Answer what you see — choose Not Sure whenever you can't tell.
Understanding Your Color Vision Results
Red-Related Color Discrimination
How easily you separate reds from similar greens and browns. Lower scores can suggest a protan-type pattern.
Green-Related Color Discrimination
How easily you separate greens from oranges and yellows. Lower scores can suggest a deutan-type pattern.
Blue-Related Color Discrimination
How easily you separate blues from greens and yellows from pinks. Lower scores can suggest a rare tritan-type pattern.
Colors You May Have Difficulty Distinguishing
Common confusion pairs for people with color vision differences:
- Red and olive green
- Green and orange
- Blue and green
- Yellow and pink
Note: This online screening is intended for educational and informational purposes only. Screen quality, brightness, lighting, calibration and device settings can affect results. It does not replace a professional eye examination.