My living room has a flowered couch cream background with flower colors of hunter green, royal blue and wine. Chairs are solid colored, one of each listed above. My carpet and walls are a very light beige.I would like to put an area rug down to make what I think would feel cozier. What color or colors and shape (round,rectangle,etc) do you think would look nice?
So much is dependent on your style and the parameters of your room. Please do post some pictures. As Lensgaga said, there are so many talented people that can help you, but they'll need a bit more information.