Honestly, a deep green velvet sofa is a safe bet. They look expensive but work in almost any room. Throw on some purple cushions and the whole color scheme comes alive. The green grounds the space while the purple adds just enough pop, so it feels rich without going too far. It's all about getting that balance right.
I put a green velvet sofa in a house I was staging, with some purple pillows to go with it. At the open house, that's all anyone wanted to talk about. They said it felt so much cozier than the usual beige and gray rooms. If you want a home to feel special but still inviting, try some darker colors and soft textures. It just changes the whole vibe of a room.