My cottage home has an open floor plan--the kitchen flows into the dining nook and both are open to the den. The kitchen backsplash is a deep yellow, the dining nook is a terracotta orange. Now we're creating a built in cabinet/media center for the den and would like to paint the wall it sits against so we can see the color behind the open shelves. We're having the worst time choosing the right color. The furniture is a dark, red brown leather (almost like cordovan) that we don't want to change. Any suggestions?