Color Vision Test: Can You Spot the Odd Shade?
About 1 in 12 men and 1 in 200 women have some colour vision deficiency, most often red-green. Doctors use tools such as the Ishihara plates, created in 1917, to screen for it.
In each round one swatch is a slightly different shade. Pick its number. The differences shrink as you go. Turn up your screen brightness for a fair result.
12 questions · about 3 minutes
This is a for-fun screening game and cannot diagnose colour blindness. Screen settings affect results. See an optometrist for a proper test.
