? Blue Chinchilla ?

[Nello'sHops&Lops]

Isn't chinchilla also a castor agouti (A-), just one with the c(chd)- instead of full color C-, so that the castor yellow (orange/fawn) is reduced to pearl white?

Yes, chinchilla is A_ __ cchd_ __ E_

Fill in the blanks for the color of chin(ie black/blue/chocolate/lilac)