Brown is a neutral and cream obviously is so your color choices are unlimited. Choose a rug with a selection of colors and then accessorize with those colors in your choices of throw pillows and and artwork. Pick one of those colors for the draperies but make sure it is one that you have selected to create throughout the room and not just be a big color on the wall that relates to nothing. Though you can punch up the color in the room you might want to choose a soothing sage green for your draperies and use the other colors in your accessories. I wouldn't choose a bright color in a drapery as that is all you will see when you enter the room. Pick the rug and the accessories and then do something subtle and soft on the windows to match.