Coral, a color once relegated to spring/summer collections and clothes for warmer climes, has been venturing out into colder evenings recently. Applied to heavier fabrics, the happy hue makes a festive holiday statement. The model Alek Wek proved that coral can play a supporting role to darker, more wintry colors like navy; Keira Knightley wore a Richard Nicoll jacquard dress to the after-party for her film "Anna Karenina"; and the model Miranda Kerr added a layer of black - and a sweetheart neckline - to a long Giulietta dress.