try one of those online makeover studios that let you try on different styles and colors, even celebrity stylesI never color my hair because I love my natural color...it changes with the lighting/season....even what I'm wearing or whether I curl it can change how the highlights show. I guess my base color is a light medium brown, but I've got dark lowlights and blonde and red highlights.
http://i56.tinypic.com/16j1tzm.jpg
http://i52.tinypic.com/oit6kw.jpg
I've always wanted to try blonde on for size but I'm too scared I'd never get this color back.