Freshen up your interiors with blue wallpaper. From brands like Designers Guild, Osborne & Little and Sanderson, these styles come in bold patterns and soft hues. Deckchair stripes give your room a coastal feeling, while Nordic-inspired contemporary prints in cool tones create a relaxing atmosphere. Choose stately prints as the backdrop for a master bedroom or florals to go in conservatories and sitting rooms. If you're decorating just one wall, consider a statement design to stand out.