Particularly when worn by itself, black is a sleek color that will create the perfect stylish monochrome look, so consider investing in a few black pieces.
Navy blue is a luxurious color that can bring some sophistication to the most casual pieces thanks to its association with old-money looks. Swap lighter blue pieces for navy.
Try heather or charcoal gray for a moody touch, light gray for a soft look, or mix different grays to create elegant and sophisticated monochromatic looks.
Brighten up fall with a crisp white coat. Stand out in the sea of khaki, but beware of wet weather and choose soft textures for a delicate cold-weather style.