How about one of those shades of green you have in the room

HI -- Because the furniture is so dark , I think you should find a pretty wallpaper for the accent wall and paint the rest of the room a matching color . Pick a paper that will last for years , I mean no ducks or bunnies but something not baby like . Maybe a barely there powder pink (damask ?) would be great with the furniture.

A citrus green - light and bright but good with your beige - http://www.sherwin-williams.com/homeowners/color/find-and-explore-colors/paint-colors-by-family/SW6422-shagreen/ but long term, I think you would be happier to paint the whole space a lighter fun sparkle color - http://www.sherwin-williams.com/homeowners/color/find-and-explore-colors/paint-colors-by-family/SW6708-springtime/

I'd go for a neutral color since furniture is darker and neutral color will give it a big airy feel

This is old. We've moved. She has a pink and orange room now. Thank you though.