Under your carpet, above the spare tire in the trunk, there is an options sticker that should display your paint code (along with your car's options, engine & trans codes, etc).
I don't know the paint codes but you color should be either Zermatt Silver or Sapphire Metallic. Zermatt Silver is a straight, metallic silver and Sapphire Metallic is a metallic silver with a blue tint to it.
