What's your Hue IQ?
The test indicates which hues you see best and also lets you compare your results with others in your gender and age range. I wasn't too thrilled when I got a 61 until I found out someone scored over 1,000. Wow.
For most people, this is just a fun little time-waster (or a way for you super-competitive types to beat up on your pals -- "Dude, I see olive-green better than you!"). For anyone in Web or graphic design, however, it might be an interesting little test to see how your eyes measure up.