What color walls go with chocolate brown curtains?

Depending on the room.
In a living room. pale green, tan, pale blue or off white would be nice.
In a dinning room. pale green, peach, beige, pale blue would work well.
In an adult bedroom (for a couple or a single man). pale blue, medium green, tan, or even one brown accent wall with any of the afore mentioned would be nice.
In a teenage or single woman's bedroom. Brown and pink are lovely together.