Colorized_American Native Indian Chief Flying Hawk, Čhetáŋ Kiŋyáŋ of the Oglala Lakota Triben (circa 1900s)

My colorized take on the subject.   As guesswork based on a little research online, there are several color options on the wardrobe but basic is the skin color. of the what is called the red race  The original vintage below has been well preserved and though scanned at medium resolution, provides a good enough detail for colorization.