I think pinks, purples, browns, strawberry, creams, yellow, grays.I have a sage green couch and added purple, toast and creams with other furniture area rugs, pillows and throws. Everything blends.
I love a pale yellow with the color sage green. These two with white make a great wedding color scheme. Also, depending on what you are using the color scheme for, a light blue or soft pink would also go well.