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Color Blindness Simulator

Compare the original color with three common color-vision-deficiency simulations and copy the simulated HEX values.

Approximate color-vision simulationThis is a design preview, not a medical test or diagnosis. Real color vision varies by person and display; do not rely on color alone to communicate critical information.

Connected color workflow

v10.74 keeps the established color/conversion widgets intact while connecting picking, palette generation, contrast review, visual preview, scales and CSS/JSON reuse. Color work stays in the browser, and recent palettes can be stored locally without an account.

Color and accessibility boundaries

HEX/RGB/HSL/HSV/OKLCH conversions are numerical color-model operations. CMYK output is an RGB-derived approximation rather than ICC-profiled print proofing. WCAG contrast ratios measure luminance contrast only and do not certify a full interface. Color-blindness previews are design simulations, not medical tests.

How to use the Color Blindness Simulator

Enter one sRGB color to preview approximate protanopia, deuteranopia, and tritanopia transformations next to the original.

Important limit

This is a design preview, not a medical test or diagnosis. Color-vision differences vary across people and severity levels, so interfaces should also use labels, shapes, patterns, or other non-color cues.

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