Choose a blue wallpaper for the ultimate calming effect in your space. If you are looking to create a sense of serenity with your interior, then a blue pattern wallpaper will definitely help to achieve this. Using light blue as the primary color for your room, coupled with warm hues in your furniture, will formulate the perfect social area for relaxation and interaction. Blue can be extremely beneficial in rooms with little natural light, completely transforming the space. Plain, dark and navy blue wallpaper designs also work well in bathrooms or bedrooms, creating complete tranquility.