Simulate
Color Blindness Simulator
Pick a color or upload an image to see it approximated under the three main forms of red-green and blue-yellow color vision deficiency. Background on prevalence and real-world effect is in the color blindness types guide.
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Normal vision
Protanopia
Red-cone loss — affects ~1.0% of men
Deuteranopia
Green-cone loss — the most common type, ~1.1% of men
Tritanopia
Blue-cone loss — rare, well under 0.1% of people
This simulation applies a standard sRGB→LMS deficiency approximation and is a visualization aid, not a clinical diagnostic tool. Individual severity varies — see the types & prevalence guide for sourced figures.