How do you see color?

A little fun for all today - Here's a test to see how well you see color/ hues.

http://www.colormunki.com/game/huetest_kiosk

I've taken it several times and depending on the time of day and computer I was at I have gotten multiple scores. This latest time I scored an 8 (0 = perfect). Apparently my eyes can't differentiate colors well on the blue/green and red/orange spectrums when I'm tired :) Oh well, at least I beat my high score of 15 (that was definitely an off day)!

Have a colorful weekend and I'd love to know your scores.