HOW TO WEAR IT "If you're wearing lilac polish, you have to wear leather," Baek says. "The leather adds a hint of irony to a prim shade. Lilac softens the hard edge of the leather."
SHADES TO TRY Lancome Le Vernis in Violet Groove, $18; lancome.com. Rescue Beauty Lounge Nail Polish in Insouciant, $18; rescuebeauty.com. Tracy Reese for Sally Hansen in Delphinium, $7; drugstore.com.Read MoreLess