Color Blindness Simulation Online

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Simulate different types of color blindness on an image: protanopia, deuteranopia, tritanopia, achromatopsia.

Drag and drop an image here or click the button below

Color Blindness Simulation

The tool shows how an image is perceived by people with different types of color blindness:

Protanopia — no red cones (~1% of men)
Deuteranopia — no green cones (~1% of men)
Tritanopia — no blue cones (rare)
Achromatopsia — complete color blindness (very rare)

Useful for testing accessibility of interfaces and designs. All operations run in the browser.

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