>>297702
Blue is a very calm and relaxing colour.
Most rooms that house the mentally deficient or defective are painted blue to try and discourage spergouts. I actually read a book on colour theory once, can't for the life of me recall the title.
Some other insights,
>Red and orange can make you lose track of time, see how many bars and casinos in your area have red interiors.
>green often used to sell "organic" products, as it makes the average person think of green fields, but it has the opposite effect when used to sell meat, as it suggests mold.