This was the colour of my hair before. I was a bit bored with it and fancied a change, so I decided to try purple streaks in my hair.
I bleached a few highlights into my hair using this pre lightener (realised after I could have left this step out as my hair is light enough for the dye to take anyway).
The dye I used was this one. Directions semi-permanent dye in the colour plum.
As you can see from the following pic it is an absolutely gorgeous shade of purple.
I also decided to add purple to the bottom layer of my hair (didn't bother with bleach as my hairs a lot lighter than the purple dye).
As you can see from the photo I wrapped the sections of my hair in cling film once I'd applied the dye. I then left the dye in my hair for 30 minutes (it says 15-20 on the tub but I wanted the purple to be really dark).
After I rinsed my hair (and successfully turned my bathroom purple) my hair looked like this.
I'm really happy with the results.
Not the best photos (my camera has a problem with purple).
Here's a photo that shows the underneath layer of purple a bit.