Color Blindness Simulator — See Any Hex Color with 8 CVD Types
See how any hex color appears to people with color vision deficiency. Simulate protanopia, deuteranopia, tritanopia, achromatopsia, and the milder anomalous trichromacy variants, with exact hex values for each.
Simulated views of #BEFF00
Sample UI
The same accent used as a button, with text chosen for contrast in each variant.
Frequently asked questions
What is color blindness?
Color blindness (color vision deficiency) is a reduced ability to distinguish between certain colors. It affects roughly 1 in 12 men and 1 in 200 women.
What are the different types of color blindness?
The main types are protanopia (red-blind), deuteranopia (green-blind), tritanopia (blue-blind), and monochromacy (total color blindness). Anomalous trichromacy includes milder variants like protanomaly, deuteranomaly, and tritanomaly.
How is color blindness simulated?
Simulations use color transformation matrices derived from empirical color-matching data, such as the Machado, Oliveira, and Fernandes (2009) model. Each matrix transforms the RGB channels to approximate how a person with that deficiency perceives the color.
What is achromatopsia?
Achromatopsia is total color blindness, where a person sees only in shades of gray. It is the rarest form, affecting roughly 1 in 30,000 people.