I've done blonde, light brown and blonde with red tips.
I have done pretty much ever color in the book
Some I only keep for a day or two before I dye it again
I just had blue hair all winter, and then it became purple as the blue started to fade.
I can't go crazy with my hair colors. My contract at work dictates that we have "presentable appearances. Any alterations to hair color must be based on natural hair colors" or some ****.