Hair Dye

Hi. I am wanting to dye my hair a blue/black color. I want the blue to be dark though. I had a friend who dyed her hair and one way you looked it was dark blue and another way it was black and thats what I want my hair to look like. Does anybody know a brand and color that will do that for my hair? My hair is a medium to light brown color. My parents are real strict on hair coloring and they wont let me do it bright blue so Im trying to find a dark blue. Please reply to this message or email me. THanks!


-Kati