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.