Final answer:
Many African American tribes used natural materials to color their hair, such as wild holly root, red juniper root and Hematite, yellow sweet clover, pear cactus fruit, and red onion skin.
Step-by-step explanation:
In many African American tribes, hair was colored using natural materials. Different tribes used various substances for coloring their hair. Some of the common natural materials used included wild holly root (mustard color), red juniper root and Hematite (red), yellow sweet clover (yellow), pear cactus fruit (tan), and red onion skin (green). These materials provided bright and vivid colors, with red, green, tan, and gray being the predominant colors used.