What is a good wall color for a living room with a white tile floor?

With a floor color like white, you can do almost any color. I'd focus on dark colors though, for at least one feature wall at least. Choose a chocolate brown on one wall and then a slightly lighter color on the other walls. You can put a great piece of artwork or family photos on the dark wall, and it will stand out against the floor.

Warm up your tile by adding area rugs. A warm, cozy shag would look great against white tile. Put something like this Cocoa Flokati on your floor. It  would look great with chocolate/taupe walls and dark brown wood coffee tables.