Courtesy Pop Beauty, Courtesy Revlon, Courtesy Barielle
HOW TO WEAR IT "Yellow nail polish looks amazing with khaki and safari colors," Baek says, dubbing the look "army girl chic." SHADES TO TRY (From left.) Pop Beauty Nail Glam in Sunny, $10; popbeauty.co.uk. Revlon Top Speed Nail Enamel in Electric, $5; target.com. Barielle in Soul-er Powered, $10; barielle.com.