Wella& House of Color: Advanced Education at The Studio - News - Modern Salon
Depending on your undertone (especially after bleaching--hello brassy oranges and yellows) choose a toner or hair color with the correcting tone as its base.
How to Choose the Right Hair Color. I could basically choose any hair color based off of eye color.
Use the colour wheel as the basis for a single colourfull illuration that could be tessellated across the wrapping paper? color theory chart - beautifully simply way to learn this (plus the fact that I suck at combining colors LOL!