Are you bored of your hair? Jazz it up with some colour! You’ll be surprised at what a little bit of colour can do for your mood, and give you a bit of a confidence boost. And if the only thing that’s holding you back is what your boss would say, then you’ve come to the right place. From peek-a-boo colours to natural-looking highlights, here are more than 30 work-friendly hair colours to rock at the office if you’ve been dying to dye.