Free Online Color Blind Test With Results
This comprehensive test screens for red-green and blue-yellow color blindness. Look at each Ishihara-style plate, enter the number you see, and get instant results that explain what your score means. Takes 3-4 minutes.
Plate 1 of 20
What number do you see in the circle above?
Test Instructions
- Look at each colored circle
- Enter the number you see (if any)
- Take your time — there's no rush
- Make sure your screen brightness is normal
- Ensure good lighting conditions
Medical Disclaimer: This online test is a screening tool. While it can help identify potential color vision deficiencies, it is not a substitute for professional medical diagnosis. Screen brightness, lighting conditions, and display calibration can affect results.
Type-Specific Tests
Take a test designed for a specific type of color vision deficiency.
Red-Green Colorblind Test
Screens for protanopia, deuteranopia, protanomaly, and deuteranomaly.
Blue-Yellow Colorblind Test
Screens for tritanopia and tritanomaly using tritan-axis plates.
Protanopia Test (Red-Blind)
Screens for complete absence of red-sensitive L-cones.
Deuteranopia Test (Green-Blind)
Screens for complete absence of green-sensitive M-cones.
Tritanopia Test (Blue-Blind)
Blue-yellow plates for tritan-type deficiency.
Deuteranomaly Test (Green-Weak)
Screens for the most common color vision deficiency.
Protanomaly Test (Red-Weak)
Screens for shifted red-sensitive L-cones.
Tritanomaly Test (Blue-Weak)
Blue-yellow plates for blue-weak deficiency.
Achromatopsia Test
Combined red-green and blue-yellow screening.