I guess red and turquoise since that is what people seem to associate me with, but I don't like to have too much of one color in my closet. I get bored pretty quickly. I started out with red as my signature color and once I realized my entire wardrobe was red, I started introducing teal and turquoise. Then my whole wardrobe became red and turquoise. So I introduced yellow, and so on...
I just like a variety I guess. I don't want to be known as "the girl who always wears red" or whatever. More than any single color, I'm more interested in color families. You'll find all kinds of brights and jewel tones in my wardrobe, but never anything earthy or pale.
As far as neutrals go, I am all about black. I like white and ink blue too, but I can't deny the urban appeal of black. I love how it looks with all my bright colors and it suits my coloring well. Black + white, or black + white + bright is always a winning combination for me. But, I still have a brown skirt and charcoal gray leggings, so I never say never.
Metallics: I'll wear anything. Gold looks best since I have golden undertones in my skin, but I think I look just fine in silver, bronze, and pewter too. These things aren't as rigid as I think many consider them to be.