Color Blindness Simulator

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Color Blindness Simulator
See your image or palette the way people with protanopia, deuteranopia, tritanopia or achromatopsia do — runs entirely in your browser, nothing is uploaded.
Drag & drop an image here

or click to browse — you can also paste from your clipboard

Drop an image to preview it under each type of color blindness.

Color vision types
Color vision types
Normal vision
Protanopia

Red-blind (no L-cones) — ~1% of men

Protanomaly

Reduced red sensitivity (weak L-cones) — the mild protan form

Deuteranopia

Green-blind (no M-cones) — the most common type

Deuteranomaly

Reduced green sensitivity (weak M-cones) — the most common form overall

Tritanopia

Blue-blind (no S-cones) — rare

Tritanomaly

Reduced blue sensitivity (weak S-cones) — very rare

Achromatopsia

Total color blindness (grayscale)

Paste HEX values to preview how a palette looks under each type of color vision.

Everything runs in your browser — your image is never uploaded. Built on the Brettel/Viénot color-vision model.

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