Color Blindness Test & Simulator
Check how you see color, then see any picture the way others do.
Four everyday designs, five ways each. Tap “With the fix” to see what makes them work for everyone.
Tap any view to see it larger.
Tap a sample, upload a photo, or drop one on the picture. Your photo stays on your device.
Pick 2 to 5 colors. See them the way each type of color vision sees them, and find pairs that blur together.
Add a label, icon, pattern or shape, so a red “stop” and a green “go” still read in grey.
Make key pairs differ in lightness, not just hue. Check the “No color” view: if it still reads, you’re safe.
Aim for 4.5:1 for small text and 3:1 for big text, icons and map lines.
Blue with orange, or blue with yellow, works for most people. Red with green, and blue with purple, often blur together.