Mix deep blue with soft neutrals such as white and taupe. The blue can help make these colors stand out.
Mix rich shades of blue with sharp contrast colors such as yellow or chartreuse.
Map your pops of blue throughout a space. Color mapping is a technique in which one can repeat a color throughout a room. For example, introduce a blue piece of art and then use a rug with blue accents, then add a blue toss pillow.
Be afraid to mix blue with black. Once considered to be taboo, from fashion to home decor realms, dark blue and black are colors that are being displayed together.
Paint a wall a deep blue unless it is an accent wall. Deep blue will likely overly darken a room if used as an overall color.
Dismiss opportunities to introduce blue into your space in interesting ways, such as ocean- or water-inspired art or photography.