headings in layouts

hii, i'm making my first layout ever and i have a big problem: i want different headings to have different colored fonts.

basically, i want my name, the blurb's, friend's space, friend's comments headings to be written in purple font, but the contacting, interests and links headings to be blue font. i know to change font color in the headings but i only know how to change it in every one of them at once :( how to differentiate between them in my code? you know, edit every single one separately