My bedroom walls are white for now (which is odd because the rest of the house has pretty fun colors throughout). I have teal curtains up that are light-blocking because the windows face east. The carpet is beige. When we moved in I already had dark purple sateen sheets and sage green flannel sheets for winter. My H had a brown comforter that I found very ugly, so we got a duvet instead and I bought a few duvet covers from Ikea. I have two, one that's white with gray flowers and one that's white with purple and maroon flowers. I also have a maroon blanket. It doesn't all match perfectly, but I think it's fine. I put purple accents throughout the room and it looks passable to me LOL.
Down the road I'd like to paint the walls, but I don't know what color yet.