Swiss Coffee or Cafe Ole both come to mind as possibilities and neutral depending on how light or dark you want to go. The first is a creamy, non-yellow neutral white. The second is a light, milk chocolate-y brown.
The right color of gray could possibly go well with that too.
Behr makes a color called "Elephant Skin" that is gray with brown and purple undertones in it that I think would go EXTREMELY well. We have it in our hobby room. It is a very, very versatile color, not dark, and very.....modern/chic/vintage feeling. Personally, this would be my top color pick.