I thought about this question and decided I was having a hard time answering it because I can't think of a single color combination that I would consider unusual. I've made quilts that run the gamut. I have a pineapple quilt made out of drab civil war repros that is drop dead gorgeous. I have made several quilts that were bright, saturated colors against black. I also have a few that are in the blue/green/purple-with-white-background family, and I'm currently playing with one that is all pinks/oranges/yellows/reds with a white background. Another color combination that usually elicits gasps from the audience is red and black on a white background.