We already know a little black dress is a no-brainer when it comes to looking your best at night, but Lauren Conrad and Selena Gomez show us blue can be just as sexy—who knew? Scroll through to see their bold blue looks and shop our favourite cobalt dresses!
On Conrad: AQUA dress
Shop more AQUA dresses here.
On Gomez: VIONNET dress; Jimmy Choo Anouk Pumps ($595) in Nude