<p>Are you in the mood for a hair colour change? Autumn is the perfect time to change your hair colour for the cooler climate.</p><p>From Millie Mackintosh's lighter brown locks to Kim Kardashian's dark espresso, check out which celeb hair colours Cosmo's been crushing on.</p><p>We spoke to the top hair colour experts in London's finest hair salons to find out how you can get the look on your next visit!</p>
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