The living room sofa is a colorful background wall decoration with what looks good

Consider using rose red or iron red.

The background wall should be the same color as the sofa or the same kind of darker. >>>More

If you choose green curtains, your home will be equipped with traffic lights, hehe. >>>More

Don't choose a pale yellow sofa for a pale yellow wall. It is recommended that you choose a sofa with a dark purple color. It can be harmonized with the brown color and does not look abrupt under the pale yellow wall, if you don't like purple, flax and jujube are good choices. >>>More

The warmer one is pale pink, but many people may find it a little greasy, but it will look good. >>>More

Beige or white (white is white).