Color Oracle in Action

Forms of Color Vision Impairment

Color Oracle simulates deuteranopia, protanopia and tritanopia. These are extreme forms of color blindness – most color deficient viewers are seeing more colors. Therefore, if you design your art for people with extreme color blindness, it will also be easily readable by those with minor color blindness and "normal" vision.

The number of people affected by color deficient vision is difficult to measure. Depending on the literature, one can find percentages between 1% and 12%. What is certain, however, is that color vision deficiency almost exclusively affects males. Color Oracle uses the following numbers: