STEP 4. PERFECT HUE
"When in doubt, choose coral," says Ferri. The blue and yellow undertones complement fair and warm skin alike. "Your fingers and toes don't need to match, but they should be somewhat complementary shades," notes Weingarten. If you opt for a neon purple to play off your Kool-Aid-colored espadrilles, choose a ladylike lavender or neutral mauve for your hands.
MC Recommends: Yves Saint Laurent Long-Lasting Nail Lacquer in Mauve Silk, $20, Borghese Nail Lacquer in Berry Confezione, $8, MAC Nail Lacquer in Scorcher, $12, Wet n Wild MegaLast Nail Color in Club Havana, $1.99, Sally Hansen Insta-Dri Nail Color in Lickety-Split Lime, $4.95, Chanel Le Vernis in Mistral, $23, Essie Nail Polish in BBF Best Boyfriend, $8, Rimmel London Pro Nail Enamel in Posh Pink, $3.99, OPI Nail Lacquer in Red My Fortune Cookie, $8.50, Estée Lauder Nail Lacquer in Wild Orchid, $18, China Glaze Nail Lacquer in Yellow Polka Dot Bikini, $6.50.