Tools
Color-blindness simulator
See your palette through color-blind eyes — 8 simulations with warnings for confusable colors.
Confusable colors
These colors are hard to tell apart for some viewers — don't rely on them alone to carry meaning.
Achromatopsia#e8590c · #4361ee
FAQ
Frequently asked questions
- How many people have color blindness?
- About 8% of men and 0.5% of women — roughly 1 in 12 men — most commonly difficulty telling red from green.
- What are the types of color blindness?
- The main types are red-weak/blind (protan), green (deutan), blue (tritan), and total color blindness (achromatopsia). The simulator shows all eight.
- How do I design for color-blind users?
- Never rely on color alone to carry meaning — add text, an icon, or a pattern, and keep enough contrast between adjacent colors.