Blue is of of the three primary colors.
yes, it is a primary color
Blue is probably my most favorite color, most blues actually contain a slight mixture of other colors.
you are right, they do. blue is also a color in the rainbow
A rainbow is caused by light being refracted by water
water is portrayed as blue in movies
That is actually due to an optical effect know as Rayleigh scattering.
i never knew that, such an an amazing optical effect.