Here are a few things you should consider when going to create an accent color on the walls of the room.
Accent (focal point) or a focal point should be made on the position of the wall that is easily seen by each eye into the room. this is because the purpose of the focal points of its own it is to steal the attention so choose affordable eye wall.
You should not put furniture and large furniture such as cabinets on the walls were used as accents. Because it can cover the accent color display that you have created