Next time you are buying hair, buy blond!
Blonds do have more fun because if you buy blond, with modify option, you can have any colour hair you want!
(Hey! and even avs shut their eyes at the wrong time in photos! Who knew?)
Simply put your hair on, go into edit and change the colour of the texture. This is one of mine from Calla. I love Calla hair and don't wear anything else despite receiving lots of freebies around. There are hair bands in this style and I separately colour them by going to 'edit linked parts', then selecting the bands with 'shift' and colour them as a separate group. Too easy