It’s been a trend in the past few years to colour your hair to unorthodox hair colours.
When i was a kid, colouring your hair to a strong shade of red was a bold thing to do, but nowadays it’s just another normal hair colour. However, green, blue, pink and white- are the new trend.
Hair colour possibilities are endless
Take a look, for example of this cool picture I found on Tumblr of a woman who dyed her hair in multipole shades of blue, green and yellow: (Click on the arrows at the bottom to see more)