Color Oracle Simulates Colorblindness

A large number of people have a color vision deficiency — about eight percent of males and three percent of females.

The free Color Oracle applies a color filter to everything on your display so you can see your designs as if viewed by a person with a color vision deficiency.

It’s a useful way to be sure that your designs can be read by the widest possible audience, and is available for Mac, Windows and Linux.