How well can you
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.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