classic xmas red or something glitzy. darks are very "in", especially grey as has already been said. Nails Inc's dark grey called Maddox Street is lovely! There is also a slightly lighter grey coming out soon! (can u tell i work for nails inc lol)
Like Judy Ive heard Grey and Purple, like a grape colour, so Ive just bought myself some Hyde in the Dark ( a graphite grey shade with a hint of sparkle) and some Rock Royalty ( a beautiful grape purple ). So I think Im set, I have a few clients who are sporting it already! I have the Rock Royalty on my toes, with some rhinestones along the cuticle line of my nail, looks really cool!
OPI had a shade of holographic slate grey in their Night Brights collection from the summer called "My Private Jet" that is Fabu! Now whenever any of my clients ask for something almost black with enough sparkle not to look too goth, I whip out that color and they're sold!