Great colour! I tried Atlantic Blue before but it just went green and washed off on EVERYTHING but this is something else. It fades really slowly on hair which is washed every day in cool water and when it does fade, it goes light blue then spearmint green but never a real green. I don't think I've ever kept one colour for so long! Really cheap to upkeep as it doesn't need regular top ups like some other colours I have tried.