Which Кои breeds come in Сиёҳ?

Club breed standards describe Сиёҳ for the Кои.

Кои color

Сиёҳ

Solid black pigment. In birds often with a green or purple sheen; on skin, legs, beak, comb and tongue the dark pigment some standards call for.

۸ Кои breeds list Сиёҳ. It is in a club standard for ۴ breeds.

Breed	JNPA
КоиСанке	Стандартӣ (“black imprints (urushizumi)”)
КоиШова	Стандартӣ (“black body (black background)”)
КоиБекко	Стандартӣ (“black imprints shaped like spots”)
КоиУтсури	Стандартӣ (“black body (black background)”)

How Сиёҳ can appear or change over an animal's life.