What a pretty room! The paint color that you currently have looks fine. Do you want something different? It is difficult to tell the colors of your furniture and rug. If you keep the current color paint you might want drapery panels the same color as the walls.

You can keep the current wall color and use either the grey or soft green for drapes (think it will be hard for you to find that green color). The pics above the sofa are hung too high.

Just saw on jcpenney.com possibly their 'restoration green' and other similar greens: http://www.jcpenney.com/liz-claiborne-kathryn-room-darkening-pinch-pleatback-tab-curtain-panel/prod.jump?ppId=pp5003970034&searchTerm=green+window+treatment&catId=SearchResults&_dyncharset=UTF-8&colorizedImg=DP0430201405132282M.tif

Or neutral sheers, from your rug, over your blinds.

http://www.jcpenney.com/studio-baystone-grommet-top-sheer-panel/prod.jump?ppId=pp5003790968&Nao=24&pN=2&searchTerm=grey+window+treatment&catId=SearchResults&_dyncharset=UTF-8&colorizedImg=DP0223201517024182M.tif