Detail
Calmness, peace, serenity, orderliness, & tranquility. Perhaps because we associate oceans with blue, and it can be a mentally soothing color for some people. That is why blue-gray are some of the most calming shades for bedrooms.
In this roomdesign, I've used a slightly muted blue with a hint of green on the feature wall and also in the fabrics. I've added different tones of blue and complemented it with orange-ish accents. The darkwood really makes the blue stand out and create a warm and balanced space.