Wilmette Basement Rec RoomTraditional Basement, Chicago

I'd love to see more pictures of this basement! I save the link for the tile, as well, great find!

What grout did you use? (specifically, what color)

I don't have access to the paint color, but Benjamin Moore has a great iPad app that lets you point your camera at a color you like and selects a matching Benjamin Moore color. It even suggests complementary colors. It may be available on other platforms too, try it out on anything you find interesting!