Muse Red #51
A rich crimson with blue undertones that is Kate's go-to shade for a night out. "A bold red makes me feel 'done,'" she says. It was inspired by the custom-made red dress she wore to Mario Testino's 60th birthday party in 2014; when asked why she chose a sexy leopard bodysuit to wear underneath the sheer gown, Kate casually replied, "I just wanted more leg than a slit . . . more thigh."