I've never used RAW, but I have used Manic Panic semi-permanent hair dye. I was able to dye my hair a purple-ish burgundy color without bleaching my hair. However, I do have a lot of natural blond highlights.
I also witnessed a bunch of my friends dying their hair various colors (green, blue and orange) at the same time I dyed my hair (we were going to a concert that evening).
As long as your natural hair color is lighter than the color that you want to dye it, it should turn out ok. It probably won't be bright blue, but you said the color you're looking for is a dark blue. All of my friends had darker brown hair, so their color didn't turn out too well.
Be sure to use hot water to rinse your hair (and blow drying it with warm air helps too) because the heat really helps set the color in.
~*Finished Cosplays for 2013*~:
Rogue - Age of X & Poison Ivy - Batman
~*Misc. Future Plans*~
Nausicaa - Nausicaa of the Valley of the Wind, Ayeka - Tenchi Muyo & Bulma - Dragonball
~*Tentative Con List*~
Momocon 2013, Dragon*con 2013 & AWA-con XIX
Last edited by Amechan : 03-31-2008 at 11:04 AM.