Color blindness, also called color vision deficiency, is the decreased ability to see the difference between certain colors.

Color blindness can make matching your clothes and accessories difficult, but it does not cause serious problems, and is usually classed as a mild disability.

Color-blind people can even drive like normal people although most can't tell the difference between green and red. However, they can learn to respond to the way the traffic signal lights up — the green light is usually on the bottom while the red one is on top.

Although color blindness is not a desirable thing, people who are color blind are better at penetrating certain color camouflages.

Another interesting fact is that more men are color blind than women, which may explain why men care less about fashion than women.