Blue is my favorite color, and it is between violet and green on the light spectrum.
Well pink is mine, why do you love blue and not other colors?
I just like blue, purple is nice too and that is right between red and blue on the spectrum.
So what's blue associated with?
Blue is associated with the clear daytime and deep blue sea.  There is an effect called Rayleigh scattering.
Does it have anything to do with ones mood?
An optical effect called Tyndall scattering explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective.
Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the eighth century Chinese artists used cobalt blue to colour fine blue and white porcelain. In the Middle Ages, European artists used
Purple
Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a secondary color made by combining red and blue. The complementary color of purple in the RYB color model is yellow.
According to surveys in Europe and North America, purple is the color most often associated with rarity, royalty, magic, mystery, and piety. When combined with pink, it is associated