Andrew Wilshere, a red-green colorblind, shares the most common problems he encounters when using websites and apps.
Illustration: Mark Stebnicki
About 10% of the population - mostly males - has a form of colorblindness.
Color Oracle is a free color blindness simulator for Windows, Mac OS and Linux. It shows in real time what people with common color vision impairments see.
One of the most recommended Figma plug-in that stimulates various types of colorblindness. Stark can also be use to check color-contrast ratios of your designs.