Color Perception Test

How finely can you tell shades apart? This page opens Hue Line, which gets steadily harder: the first row has wide hue steps, and by the fifth row neighbouring chips differ only slightly.

Your score shows where you start making mistakes – a fun, rough sense of your colour discrimination on your screen.

What affects your result

Your screen – colour accuracy varies a lot between devices.
Brightness and night-mode or blue-light filters.
Room lighting and reflections.
Tiredness and how long you've been looking at the screen.

Fun, not diagnosis

This is a casual game, not a medical test. It cannot detect colour vision deficiency. If you're worried about your colour vision, speak to an eye care professional.