Socialite is described as a "warm copper [with a Satin finish]." It's a warm-toned, mustard-y color. This one is a color that I found hard to describe, as it's a mix of brown, orange, and yellow with a barely-there satin finish. It had excellent color payoff and applied very smoothly. MAC Juiced was the only similar shade that came to mind, but it is yellower. See comparison swatches.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.