If you start the decoration project from scratch, the sofa can be chosen first so you can decorate it. Showcases of the sofa as inspiration for a room can be lined with luxurious fabrics that are lively, or covered with colorful prints. This is the focal point of the room.
If you add a sofa to a decorated room or if you prefer the sofa to play a supporting role, then choosing colors is important. Choosing a new sofa for the existing color palette means you have to decide whether the sofa will be neutral, or whether to take an accent role.