Color Blind Test
Enter a hex color and see how it appears to people with different types of color vision deficiency.
100% client-side · no upload
Original
Protanopia (red-blind)
Deuteranopia (green-blind)
Tritanopia (blue-blind)
Achromatopsia (no color)
How to use
- Pick a color using the color picker or type a hex value (e.g.
#e74c3c). - Click Simulate to see how the color appears under four types of color vision deficiency.
- Compare the swatches side by side to check if your palette is distinguishable for all users.
Related accessibility tools
- WCAG Contrast Checker — verify contrast ratios against AA/AAA
- Font Size Tester — preview text at different sizes
- ARIA Cheat Sheet — WAI-ARIA roles and attributes reference
常见问题
- Is this color blind simulator free?
- Yes, completely free with no signup and no usage limits.
- Does my data leave my device?
- No. All simulations run entirely in your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. Works on iPhone Safari and Android Chrome without installing any app.