Actress has hit the dye

Sienna Miller is rocking a red hot new look. 

The Factory Girl actress revealed a warm pinky auburn hairstyle during a day on the beach day in Mexico with her family last week. 

Tom Sturridge‘s fiancée left her long locks loose before piling them into a bun to paddle in the sea with the pair’s daughter Marlowe, 1.  

As well as showing off her copper tone, Sienna displayed her slim post-baby body in a tiny black bikini.  

The 32-year-old – who usually sports glossy golden highlights – accessorised her sexy string swimwear with dark shades.

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Beth Shearing