So I have a small 10' x 10' room. Almost all of the things are white. I am planning to paint the ceiling this color http://www.benjaminmoore.com/en-us/paint-color/midnightnavy (so as to add glow-in-the-dark heavenly bodies and the wall this color http://www.benjaminmoore.com/en-us/paint-color/icedslate. What color of tiles should I use? I am choosing between white, a light gray that looks like floorboards or a light brown that looks like floorboards? Thanks in advance. :)