What is the rarest color of the American Akita?

Could you please elaborate on the rarity of the various colors of the American Akita breed? Specifically, which color is considered the most scarce or unusual among these majestic dogs? Is there a particular hue that stands out as exceptionally difficult to find or breed for, and if so, what factors contribute to its rarity? Understanding the nuances of this breed's coat colors and their prevalence would greatly enhance our appreciation for these remarkable animals.