KOEN

Color Vision Test: Find the Odd Color

COLOR · SENSE

Test your color perception: spot the one tile with a slightly different shade in 60 seconds. The grid grows and the difference shrinks as you level up.

LEVEL1
SCORE0
TIME60.0

Ready?

Find the odd tile for 60 seconds

HOW TO

How to use

  1. Press Start. You have 60 seconds.
  2. Tap the one tile that's a slightly different shade from the rest.
  3. Each correct tap scores a point and moves you up a level with more tiles and a smaller difference.
  4. A wrong tap costs 3 seconds. When time runs out, you'll see your grade and the smallest difference you spotted.
PAIRS WELL WITH

Pairs well with

FAQ

FAQ

Is this a medical color blindness test?

No. It's a game that measures how well you notice small lightness differences. For a real diagnosis, see an eye care professional.

Why do my scores change between screens?

Brightness, color settings, night mode and viewing angle all change how colors look. Turn off blue-light filters for the most consistent results.

What does MIN Δ mean?

It's the smallest lightness difference (in %) you found in that game. The lower it is, the sharper your eye.