Shob

Abhisheka is made by five: Milk, Iogurt, Gheee, Honey and water.

If you can read Chaintanya Charitamrta by Srila prabhupada, you will get clear point. There is explained very well that Krsna is supreme. All of them are Krsna devote, Krsna is devote of love. when you chant and serve krsna, you will be free from material desires, he will not ask to bag Vardan, he knows what to give, to go back to Krsna.

Krsna is not black, but sky blue. Because He is the sky. He is unique, attractive. He can choose any clr, he is rich, handsome, famous,intelligent, also hv renounciation. Why not Blue or black?