Unless that's the look you're going for, use lace sparingly throughout the rest of the living room, if at all. Curtains in lace, especially if they are vintage, can bring texture, warmth, light, ...
In neutral, gauzy fabrics, those bands of color can give curtains (and the whole living room) a dreamy look ... can bring texture, warmth, light, elegance, and a finished look to the space.