Normal Vision
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Protanopia
No red cones (~1.3%)
Deuteranopia
No green cones (~1.2%)
Tritanopia
No blue cones (~0.001%)
Achromatopsia
No color vision (~0.003%)
Protanomaly
Weak red cones (~1.1%)
Palette Contrast Test
Types of color blindness
- Protanopia — red-blind, cannot perceive red light
- Deuteranopia — green-blind, cannot perceive green light
- Tritanopia — blue-blind, cannot perceive blue light
- Achromatopsia — total color blindness, sees only grayscale
- About 8% of men and 0.5% of women have some form
Want to learn more?
Read the complete guide with examples and tips