Satin finish, MAC describe it as a soft muted brownish-pink. This is quite dark on me, a bit more of a plum on me, as I said, I've been liking the lighter, pinker colours at the moment, so I haven't really been wearing it much.
Edit: I'd agree with myself in what I said about it being slightly more plummy on me, a light plum though. Again, better without lip liner. I need me some lighter lip liners!