How good are you at differentiating colors?

I came across this test in other blogger's entry. This is quite a good test, or game if you would call it~

What we need to do is to sort the color blocks in between according to the first and last color block. Eyes are a bit tired after finishing the first two rows but I think it worths a try! :D:D
Click here to do the test!

I have done the test twice with score 36 the first time and 26 the second trial (the lower the better). This are what I've got :D:D

I don't think I do very well compare to my age group's average, maybe I need to practice my eyes a bit more or try the test again on a different computer hehe~