I just received the latest copy of GQ and they had a great photo spread on peacoats. One shot had someone in a camel colored peacoat with a white v-neck t-shirt underneath. It totally looked money.
I have also seen images of people wearing a camel colored trench over a dark suit. The colors set each other off really well, because the light color of the coat contrasts the suit.
So the next time you are in the market for an overcoat, check these camel trench/peacoats out.