Did you know that Blue pigment was so rare in nature, that historically it was prized in a lavish way?
"The color blue is suggested for high-traffic rooms or rooms that you or other people will spend significant amounts of time. Another cool color, blue is typically a calming and serene color, said to decrease respiration and lower blood pressure. The bedroom is a great place to use these colors as they should help you relax." by ArtTherapyBlog.com