Blue, in general, has a lot of shades and all of them create a different mood – from uplifting to refreshing. How blue color effects human and interior read here while I'm inviting you to admire this versatile (mostly calm) color.
Pay your attention to the fact that blue matches with white, brown, golden and green extremely well. Now take a look at these amazing blue interiors! I advice not to use blue for huge surfaces. It's enough one or two blue accents.