I am redoing a small bathroom, about 5x8. I choose this dusty blue marble-ish tile for the floor with white walls. My vanity will be on the long wall, and will be light wood. I want to use the blue tile to the ceiling as a an accent wall just on the vanity wall, but the store salespeople thought it would be too much. I feel like not so much of that wall will show, after the vanity and mirror. The bathtub will still have a curtain and white-toweled surround.

Should I leave all the walls white or can I use the blue on the vanity wall?