Below please find a selection of blue patio umbrellas, in a variety of sizes and styles. Most require a separate base to hold the umbrella upright.
Blue patio umbrellas can be lighter shades like sky blue, all the way to darker shades like navy blue. The darker shades tend to hide any dirt or stains which may occur with use. Putting on an umbrella cover can avoid most problems. Good luck in your search for blue market umbrellas.