Types of Colorblindness

There are many different types of colorblindness. If you would like to learn more, please see the Colblindor website Links to an external site.. Deuteranope is the most common type of colorblindness. It is sometimes called red/green color deficit but it affects how a person sees all colors and affects 1 out of every 100 males.

Standard and Color-Blind Friendly Examples

One strategy when using color is to combine it with shapes so that if people don't see color the same way, they can still make sense of the content. Here we have two sets of color bars, but the second set adds a pattern.

bars of color with patterns added — Color Bars with Patterns Added

color bars as seen with someone with red-green colorblindess — Color Bars as Seen With Seen by Someone with Deuteranope

color bars with patterns as seen by someone with the deuteranope type of color blindness showing that many of the colors look similar to each other — Patterned Color Bars as Seen by Someone with Deuteranope

References

Colblindor. (2016). http://www.color-blindness.com/tritanopia-blue-yellow-color-blindness/

National Library of Medicine. (2015, January). Color vision deficiency Links to an external site.. https://ghr.nlm.nih.gov/condition/color vision-deficiency

Updated May 2023