Color Blindness Simulator

The tool simulates: Protanopia (red-blind, ~1% of males), Deuteranopia (green-blind, ~1% of males), Tritanopia (blue-blind, rare), and Achromatopsia (total color blindness, very rare). These cover over 99% of color vision deficiency cases.

The tool applies established color transformation matrices to the input color. These matrices approximate how the color would appear to someone with the corresponding color vision deficiency by shifting the RGB values.

About 8% of men and 0.5% of women have some form of color blindness. If your UI only uses color to convey information (like red=error, green=success), those users may not get the message. Always add shapes, patterns, or labels alongside color.

Deuteranopia (green-blind) and protanopia (red-blind) are the most common, together affecting about 2% of males. Both cause difficulty distinguishing reds from greens.