First, you need to decide the general look you like. That will help you decide statement and background pillows for your design. It is easiest to choose between warm and cool tone colors first. Warm tone colors, like red, orange, or brown, look best with tans and beiges. Cool colors, like blues and purples, look best with grays, white, and black. Consider the rest of the room. Do you want more warm tones or cool tones?