What sofa does the white living room match?
If it is middle-aged and elderly, like a sedate style, you can use dark green leather sofa, or dark brown.If young people, like fashion, beautiful style, you can use bright yellow cloth sofa or orange fabric sofa, so that the room is full of modern movement, youthful vigor.
I am not what professional advice, but his home just decoration, I think more than three kinds of color of a room is best not to. But the best is the same color, since your background wall is green and white, green is more difficult with the pull, insurance, or white sofa,
But add a few green cushions, can echo and background, curtains can choose white flowers with green lemon yellow, (I think you can buy a few meters of curtain cloth, with the color of the curtains do several pillows or pillow sets), hanging on the wall behind the couch full of lemon yellow small photo, put your favorite photos and pictures, the tea table and TV cabinet have white, top with yellow small decorations, the effect will not be very poor, if you feel boring, also can go online to buy some of that color stickers (of course, the best is lemon yellow and green) posted on the tea table, TV cabinet, love can not tear up at any time):
