The Aboriginal Americans were various shades of copper color some very dark in complexion and there were many Nations indigenous to North America that were not much different from the African and Asian in appearance as reported by earliest European/Spanish explorers.
“… the Black Seminoles are sometimes described—and sometimes describe themselves—as black Indians. The concept of black Indians has historical roots in early America and was adopted by individual Black Seminoles (who often just called themselves “Seminoles”) and others throughout the twentieth century. Among older Black Seminoles, for example, there remains a strong traditional sense of not being “African American.” The concept of black Indianness is rooted in the historical reality that some African Americans and Native Americans intermarried, also—and this is more problematic historically—in the belief that some Africans were present on the North American continent before the arrival of Columbus.”