Color Blindness Simulator
Simulate how colors appear to people with different types of color vision deficiency.
Upload an image to see how it appears to people with different types of color vision deficiency. Everything runs in your browser — the image is never uploaded to a server.
No image yet. Use Examples or upload an image above.
Red-green color blindness is the most common type by far, but it isn't the only one, and a design that carefully avoids a risky red-green pairing can still be genuinely unreadable to someone with the much rarer blue-yellow type if that specific pairing was never actually checked, since fixing for one type of color vision deficiency doesn't automatically fix for another. This tool simulates how colors actually appear across several distinct types of color vision deficiency, rather than only the most common one.
See moreSee less about the Color Blindness Simulator
Useful for checking a color palette against both red-green and blue-yellow color blindness before finalizing a design, confirming a chart's color coding is still distinguishable to someone with a less common type of color vision deficiency, or auditing an entire UI's color choices across multiple types of color blindness rather than just the most familiar one.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline