I love the color blue, is it a cross between any other colors?
It lies between violet and green on the light spectrum.  
Oh really? Does blue have any historical significance?
Blue lapis lazuli tones were used in ancient Egypt for jewelry.  I have a pin with blue lapis and it has flecks of gold in it.
Oh cool.  What else is good to know about the color blue?
Blue
Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model. It lies between violet and green on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering.
molds. Seams between the bricks were carefully planned not to occur on the eyes of the animals or any other aesthetically unacceptable places. The bricks were sun-dried and then fired once before glazing. The clay was brownish red in this bisque-fired state.
The background glazes are mainly a vivid blue, which imitates the color of the highly-prized lapis lazuli. Gold and brown glazes are used for the animal images. The borders and rosettes are glazed in black, white, and gold. It is believed