Blue bathroom design ideas can make your bathroom look more cool serenity and regal charm. Blue colors are also ideal and popular for the bathrooms. There are several blue bathroom design ideas. For example blue nautical bathroom design ideas. Nautical décor is fun and trendy, and blue is essential to achieve this style. For your nautical look, you will have a palette of three colors: cherry red, crisp white and blue. The blue you choose should be primary blue or navy blue, not a pale or blue-green shade of blue. Place a replica ship in a bottle on the counter or a painting of a ship or anchor on the wall to add to the nautical theme. Stripes always go well with a nautical décor, and you can add them in the form of towels, window treatments or wall paint.