Bathroom color advise!?

I have baltic brown sink (like this http://www.marblemaster.com/granite/granite_slab/Baltic_Brown_Granite_Slab.html) and light beige shower stall. My vanity, medicine cabinet, tub, toilet and cabinets are white. The towels Ive fallen in love with are rust and green. Im not sure what to paint the walls though. Been staring at paint chips for days. Any suggestions? Thank you