Free colorblind test

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see color?

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

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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.

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Did you know that ...
bulls don't actually react to red?

Bulls are completely color blind. They charge the red cape because it is moving, not because it is red.

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Did you know that ...
1 in 10 men are color blind?

However, this stern statistic is mostly true only for Western societies. In comparison, only 1 in 100 Inuit men are color blind.

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Did you know that ...
the color blind can see in the dark?

They cannot see in total darkness, but they can distinguish details at a much lower light level than people with normal color vision.

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