Before I go on let me say that I am saving and posting interesting information that I find on color from the internet on my Facebook Page - www.facebook.com/NaturasArt. For example there are posts about color libraries and the discovery of a new color of blue as well as dyes and colors.
Blue recedes to the edges. It is generous in it's capacity to hold and make space for the middle. It also recedes in space and maybe in contemplating this you will get a feel for color perspective. It wants to form itself more than many other colors. Try painting just a blue on white and see what happens.