Navy blue is a deeply rich, sophisticated shade that is incredibly easy to coordinate with. Red and white are the most usual companions for navy, but there are other colors that work, too.
Colors that go with blue, or in fact any other color, will always be limited by the tone that you pick, hence why we're looking more closely at a particular shade of blue: namely, navy. Decorating with blue of all tones, however, offers you plenty of color combinations to try, whether you're using the navy as the principal shade or as an accent color.
