sofa could look good in a Linen natural texture, the color perhaps in a slightly sage green tone to work with the deeper colored wall, accent cushions in coffee, tan and green would help pull it together. You need texture everything is too smooth.

I have found sofas that have gray or blue tend to go with any decor for extemded abounts of time. Linen and ligter colors are always nice but hard to keep clean ( stay looking clean anyway).

A soft gray suede would be stunning...just watch out for black or brown leather.