Contemporary Design Living Room

interior design help!!!?
I’m now shopping for window treatments in the living room, but don’t know what color to shop for that will enhances the room. our living room and the kitchen is one room separated by an island and the flooring. the living room area is a beige color carpet and the kitchen is tile in the color of different shade of beige. the wood cabinet in the kitchen is a cross between an oak/walnut stain. with granite countertop. also some shade of beige with black dots and gray. We have a leather corner sectional in the color cream. I know it’s kind of confusing without pictures, but i kinda feel that the window treatment should not be another color of beige or cream. what color should I get for the roller shade that will end up behind one corner of the sectional? our wall is eggshell white. btw, I was aiming for a modern contemporary look for the room, but kind of sophisticated.
Rust would work or burgundy or green or gold. Actually, your so neutral now almost any color would be good.
Home Decorating Basics : How to Design a Contemporary Living Room