1. Accessibility & Legislation
  2. Common Issues
  3. Testing & Tools
  4. Analysing Your Site

2.05.02 Colour usage: Colour blindness (photos)

Deuteranope

colour photo depicting deuteranope colour deficiency Hover image to see effect of Deuteranope. Requires CSS for the image to change between normal and the deficit.

A form of red-green colour deficit


Protanope

colour photo depicting protanope colour deficiency Hover image to see effect of Protanope. Requires CSS for the image to change between normal and the deficit.

Another form of red-green colour deficit


Tritanope

colour photo depicting tritanope colour deficiency Hover image to see effect of Tritanope. Requires CSS for the image to change between normal and the deficit.

A very rare condition consisting of a blue-yellow cone deficit


Next: age effects