Changing colors

Hi,

I have been trying to change the colors of my theme, but I have got it all messed up. It seems like several color codes need to be changed for one part of the theme to change. It’s really confusing, and therefore I was wondering if anyone knows the theme’s html well enough to tell me what codes to change for what part of the theme and so. Or if anyone knows where to find some kind of guide or tutorial.

Please help – my blog is all blue right now!