Yeah bro, that's probably the easiest spot. My living room had a totally blank wall behind the sofa and it looked boring as hell. I checked accent wall wallpaper (https://costacover.com/collections/accent-wallpaper) and found a darker botanical design that worked with my beige furniture. Put it up, added a couple of plants and some warm lighting. Done. The room feels way more finished now without buying a bunch of new stuff.