Krishna is the omnipotent, supreme person. His name, ‘Krishna,’ means that he is the most attractive person.
We all know about the mightiness of the God, but do you know why is the God depicted with colour blue
One of the theories is that Vishnu, because of his association with water, is depicted blue; therefore all his incarnations including Krishna, are shown as such. In Hinduism, persons who have depth of character and the capacity to fight evil are depicted as blue skinned.