How Many Different Colors Can We See?

We all know that some people see the world in a limited palette of hues due to color blindness. But what's the largest number of colors that we can possibly see?

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In this video, Sci Show takes us on a whistle-stop tour of color vision, pointing out that normal folks can see about 1 million colors. But in fact there's a genetic mutation that allows a small number of people to register colors between red and green—allowing them to see a staggering 100 million colors. Watch this video to find out how that can happen. [Sci Show]

DISCUSSION

moonshadowkati
Moonshadow Kati aka Lady Locksmith

There are times I really hate having deficient eyes, but i'm glad I can at least see some color. Living in a world of gray, like my grandfather did, would really suck for me. Then I see stuff like this and I get REALLY jealous. People with superhuman senses fascinate me.

(Admission, I can't watch videos at work, but i've seen stuff about this before.)