Obviously what's acceptable at work has to come in to play, but aside from the boring rules and regulations, would you be brave enough to dye your locks a shock colour?
Here's a look at a few celeb ladies taking colour pop hair into their twenties and thirties.
Katy Perry's green hair
Katy Perry revealed slime green sections sliced through her dark brown locks.
Kristen Stewart's orange hair
Kristen Stewart has dyed her hair orange for a film role.
Fearne Cotton pink hair
Fearne Cotton indulged her punky vibe with a patchy pink rinse.
Nicole Richie's purple hair
Nicole Richie has been keeping her purple hair styled, sleek and chic.
So what do you think? Would you, will you or have you dyed your hair a crazy colour as a grown up? Tweet us @handbagcom
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