I like to keep the wall color all the same. I'm doing a whole house remodel, using Sherwin Williams "Softer Tan" on the walls with the off white color (Mocha in my coffee/Lowes version) on the base boards. Espresso or a cinnamon colored vanity would look very nice. I'm currently using a vessel sink and wall mounted faucet....gives it a little more interest and "upscale" updating....

Cream floor tile is neutral...goes with anything...leave it....

Note: I went to the Restore and got my "new" floor model vanity for $35, Marble vessel sink off Ebay $75, Vigo open box faucet off Amazon $48/free shipping.

Making a statement....and not spending a lot!

Agreed with Nicole. The off-white or cream colored floor is neutral. You will be fine with a white toilet, white vanity top, and dark wood cabinet. You can add color with the walls, or keep them neutral and use towels and accessories for color :)