I would think a neutral color would be good, but here's a little expanding on the post that suggested the small sample paints. Paint them on pieces of posterboard and put them up in your room so you can see the colors at different times of the day. they will change color/tint whatever. I like the idea of painting posterboard instead of right on the walls b/c you won't have to try and cover up all those swatches-you can take them down and toss. A color specialist told me about this and it works!