Free colorblind test

How well can you
see color?

Tell us what you see in the following images and share the test results with your friends!

Get started

Did you know that ...
some animals can see more colors than people?

Bees and butterflies can see colors people never see.

Continue to next image

Did you know ...
why Facebook is blue?

Because Mark Zuckerberg is red-green color blind. Blue is the richest color people with this type of color blindness can see, which is why it is Facebook's dominant color.

Continue to next image

Did you know ...
who discovered color blindness?

John Dalton was the first to investigate color blindness and was color blind himself.
His diagnosis was confirmed in 1995, some 150 years after his death, by DNA analysis of his preserved eyeball, which he had donated to science.

Continue to next image

Did you know that ...
babies are born color blind?

Babies can see only black, white, and shades of gray. They are usually able to distinguish between most colors by the age of 2 months.

Continue to next image