Another beautiful alternative if you like color would be a pale periwinkle or a pale violet (these are different hues of the carpet color), or a pale blue of the same tint as the carpet. Accenting with shades of white or cream, pale yellow or peach on the above back background wall colors brings layering to a whole new level.
I am curious about your current furniture colors and what room this is for. Write back if you want more ideas. Have fun with your project! LB12star