Color Blindness

About 8% of men and 0.5% of women worldwide are red-green colorblind — that’s a substantial number.

Colorblind vision
Normal colors

Red-green colorblindness is the most common type. This picture and this page show how most colorblind people perceive color.

People with other forms of colorblindness may see yellow or blue differently. In some very rare cases, people can only see shades of gray.

Photo by Dan Gold on Unsplash.