Blue is one of the three primary color pigments.
yes, it is, and it is my favourite color too
It's one of my favorites as well. It lies between green and violet in the color spectrum.
yes, you are right, blue has types, can you tell me?
Azure and other styles like light blue and navy blue exist.
ok, what is the origin of the sky blue?
The eye sees blue when light is between 450 and 495 nanometers.