color

Color Blindness Simulator

See how a color appears to someone with protanopia, deuteranopia, tritanopia or achromatopsia. Based on the Brettel–Viénot–Mollon (1997) model. Runs entirely in your browser.

instantnothing uploadedno signupunder 30 KB
— Perceived color

Everything runs in your browser · nothing is uploaded

Examples

{"color":"#000000","type":"protanopia"}#000000simulate color blind

How it works

Available operations: simulate color blind.

Everything runs locally with the same code that passes our automated correctness tests — no server, no upload.