While Mary-Kate Olsen [1]'s been known to keep it sleek in all black [2], it seems she's embracing a bit of color for Spring. After making an appearance at the airport [3] in lightweight essentials from her label The Row, the designer joined Olivier Sarkozy for a night out [4] in West Hollywood.

Though Mary-Kate did stick to a dark foundation of silk trousers and a slinky tank, her look was all about the add-ons. Since she left a white cardigan unbuttoned beneath her camel coat, you could make out her red braided belt, its hardware played up by layered pendant necklaces.

Mary-Kate opted for luxe accessories; a black shopper tote and sleek booties made for the finishing touches to her outfit — and total confirmation that when it comes to date-night dressing, we should take a tip from Ms. Olsen [5]. Read on to get inspired, and then scoop up the key pieces.