
At the risk of sounding superficial, there's nothing like changing your hair to change up your mood. Going darker usually means shinier locks; highlights and you instantly feel beachy; extensions might inspire long-ass braids and a fresh, tight crop do' can be nothing short of liberating.
If you're not up for the commitment of cutting your hair, colour is great for a fling. Remember when Kim and Bieber went blonde? What about when Helen Mirren and Sienna went peachy for the red carpet? Plus Georgia May Jagger has just gone from blonde to red and USA Olympic swimmer Ryan Lochte went ice-blue for the Games. No more excuses, you only live once, so book that appointment, shake a few feathers and turn a few heads as we head into autumn.
Needing some inspiration before you reach for the bleach? Here are the best autumn colours being served on Instagram right now...

We're coveting senior colourist at Taylor Taylor London Rute's dark mop. With dark brows to match, this colour is autumn ready.

If you're undecided between bleach blonde and candy pink, go for the middle ground we're calling champagne. This colour is by Harriet at the Dalston branch of Blue Tit, please form an orderly queue.
Photo: via @jessicaannewoodley.
Don't hide those roots under a hat now it's getting colder, go for a brave colour change and let it grow out.
Photo: via @ninanesbitt.
Ice ice baby. We're dreaming blue hues as we sidle into winter. Get to Bleach London for this colour.
Photo: via @bleachlondon.
Atlanta De Cadenet showing us that pink shouldn't just be for the height of summer. A slightly more grungy dirty-pink looks amazing with dark roots and is so this season, it hurts.
Photo: Via @atlantabean.
Rihanna – we're calling this shade "mink" because it looks so darn rare and expensive. Invest now.
Photo: Via @badgalriri.
Model and artist Gabrielle's all-over shade of nearly-black looks fresh and modern with a blunt cut finish.
Photo: Via @gabbriette.
Model Georgie Hobday giving us total Julianne Moore in A Single Man vibes with her retro ringlets. Ginger is not just for those blessed with natural red hair – forget bleaching your hair blonde, autumnal reds look just as fierce.
Photo: Via @georgiehobday.
Make like Joan and go a shade darker than you "should" if you have hazel eyes. It'll warm your skin tone and make your eyes pop.
Photo: Via @joansmalls.
Selena's toned down her dip-dye, chopped the ends, added a fringe and gone a few shades darker, adding more shine in months with less sunshine.
Photo: Via @selenagomez.
We think Molly's shade of chocolate might just be the most delicious yet. Take this picture to the salon, prontissimo.
Photo: Via @mollymoorish.
Tokyo's hottest designer of the minute, Yoon, has forgone trendy root-re-growth and has done all the way to the roots icey-blonde. Thinking of bleaching? Take note. Leave your eyebrows dark to give your look an edge. Warning: this look's high maintenance.
Photo: Via @yoon_ambush.Like what you see? How about some more R29 goodness, right here?
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