Hello, I have painted my walls a light blue with the trim around the windows and fireplace left white. I have purchased white thick cotton duck tab top panels for the window. There is a lot of wrought iron items in the living space and I thought it would look nice to buy black wrought iron decorative rods for the curtains. Then my sister said that you are never supposed to put black and blue together. Is this a decorative no-no? Or do you think it will look good? I could always opt for silver or a lighter wrought iron, but I thought I would try to match it to the table and chairs that are in the same area.