Are you going for all-out blue or just a sheen of color? With your dark hair, you'll probably need a professional with pro-grade supplies to get any real color.
You have to be very careful with blue and blue-violet dyes, mainly because they won't last long and when they start to fade, they turn sort of a sickly blue-grey. Red-purple tends to last a bit longer, though (I think).
I agree with the comment on avoiding pink, even though pink dye looks fabulous and lasts for ages.
I have a good friend who's done hers a kind of anime-heroine-like turquoise for years and years. It's at least a yard long. She's a geneticist, now that I think of it.
no subject
Date: 2011-08-29 07:44 am (UTC)I blame the Holmes colouring. I remember going through my punk phase and being very cross about only being able to go black, otherwise I looked silly.
no subject
Date: 2011-08-29 07:46 am (UTC)iswas? That's a bit daft.no subject
Date: 2011-08-29 06:18 pm (UTC)no subject
Date: 2011-08-30 03:09 am (UTC)no subject
Date: 2011-08-29 06:28 pm (UTC)I agree with the comment on avoiding pink, even though pink dye looks fabulous and lasts for ages.
no subject
Date: 2011-08-30 03:07 am (UTC)