help! light colored alor dark colored bathroom?

Hi, I have a media sized bathroom of say 6 ft by 10 ft with a sink housed upon a platform, 3 cabinets below the platform a toilet opposite to the cabinet and a bathtub to the right of it. It is attached to my bedroom which I'm redoing with the following colors: dark gray floor, dark wood furniture and and false ceiling, off white walls. Now I was wondering whether I should have a completely grey color scheme for the bathroom or should I have the floor grey and the walls covered in beige or light brown tiles, or a grey floor with dark brown tiles, or should I keep it mostly off white with beige marble flooring and off white walls. I'm going to keep the dark wood furniture scheme of the bedroom as I'm getting the furniture custom made so I'll have plenty of wood. Also the bathroom gets plenty of natural light from a large east facing window. Thanks for the help :)