I saw a few people ith green hair yesterday, looks awesome. ![Cheesy Green :green:](http://www.intensitysquared.com/Smileys/default/green.gif)
Otherwise, I like the colour purple and you're right, it needs to be darkish or you'll look like a granny.
Just recently I was wondering why I haven't seen any of those old people with the blue/purple/pink hair lately.