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Find and press the one square that is a different colour
1
Level
34.0%
Colour difference
—
Best level
This is not a colour blindness test
This game measures how well you tell shades apart. Colour blindness can only be identified by a test built on specific colour combinations, like Ishihara plates, and a real diagnosis has to come from an optometrist. Results also swing considerably with screen quality, brightness and the light in the room.
What this game does
- The difference shrinks each level
- Your limit level saved
- Notes on screen brightness
- How this differs from a colour blindness test
Other games
These are for fun, not diagnostic tests. Scores shift with your screen, mouse and how tired you are.