Monochromatic gradient hair color from black to white.
Awesome hair colors in blue via tumblr!
Amazing vibrant light blue hair in a bun from fuckyeahmaygan.tumblr.com:
and another gorgeous blue haired girl.
Pretty in turquoise.
Loving this brown hair with aqua bangs from downsided.tumblr.com:
Pastel blue and purple from idioteque15.tumblr.com:
Short red hair with blue underneath by john-wayne-tasty.tumblr.com:
Lovely pink hair by lyzzieg.tumblr.com:
Ion Color Brilliance Fushia with added conditioner.
Beautiful hair in pink and purple by demonlordsatan.tumblr.com:
Ah I miss my old hair…
I used Special Effects Atomic Pink and Special Effects Wild Flower. (I used conditioner to make them lighter.) The front was pink and the back was purple.