ACCESSIBILITY TOOL
Color Blind Simulator
See how images and colors appear under different types of color vision deficiency. Supports all major CVD types with scientifically accurate simulation.
100% client-side
Real-time simulation
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Drop an image here or click to upload
Supports PNG, JPG, WebP, GIF, BMP
Before / After Comparison
Original
Simulated
All CVD Simulations
Pick a Color
How This Color Appears
About Color Vision Deficiency
~6% of men
Protanopia / Protanomaly
Reduced sensitivity to red light. Red and green can appear similar. Protanomaly is the milder form.
~5% of men
Deuteranopia / Deuteranomaly
Reduced sensitivity to green light. The most common type. Colors shift along the red-green axis.
~0.01%
Tritanopia / Tritanomaly
Reduced sensitivity to blue light. Very rare. Blue and yellow may appear similar. Affects men and women equally.
~0.003%
Achromatopsia
Total color blindness — only shades of gray are perceived. Extremely rare, often accompanied by light sensitivity.
Done!