My favourite colour is blue. 
Blue is one of the three primary colors. I like it too
yes,and also identification for pleasant
Color mixing can be done to create other colors, e.g. Blue and Yellow make Green
yes, nature colour mixing done in peacock. Its god gift
There's also a theory called color temperature that's very interesting
oh good, can you share  some details
It is an important feature in photography, manufacturing and astrophysics.