"Colored" was another group reference that was commonly used for African Americans.

See this excerpt from http://en.wikipedia.org/wiki/Colored

"Colored is a North American euphemism once widely regarded as a polite description of black people (i.e., persons of sub-Saharan African ancestry; members of the "Black race"). It should not be confused with the more recent term people of color, which attempts to describe all "non-white peoples", not just blacks. The term colored in particular (along with Negro) has fallen out of popular usage in the United States over the last third of the 20th century, and is now archaic and potentially derogatory, except in certain narrow circumstances such as the name of the National Association for the Advancement of Colored People (NAACP).

The term "colored" appeared in North America during the colonial era. A "colored" man halted a runaway carriage that was carrying President John Tyler on March 4, 1844. In 1863, the War Department established the "Bureau of Colored Troops." The first twelve Census counts in the U.S. enumerated "colored" people, who totaled nine million in 1900. The Census counts of 1910–1960 enumerated "negroes."
Free people of color were sometimes accorded higher status than blacks, because of the association of the latter with enslaved status. In addition, free people of color were sometimes the children of planters who may have passed on wealth in the form of property or education, including apprenticeship to a trade. In the well-established Creoles of color community in New Orleans and southern Louisiana, many people became educated and owned property, including their own businesses. but were more often considered lesser than people of separate ancestry...

The historical term free people of color refers to people of African descent during slavery who lived in freedom. A related term from the time of slavery is gens de couleur, a French expression that refers to the free descendants of white French colonists and Africans. Because so many of these people had mixed African and European ancestry, they are sometimes labeled mulatto. They are also sometimes referred to as affranchis.

Some struggle to identify with the term, arguing the word color merely refers to level of skin melanin, and so fails to define correctly those who are not noticeably non-white or whose racial background includes both races of white and non-white. It should be further noted that terms such as colored people or people of color are technically misnomers; all white people have color in their skin as well, with the exception of albinos.

The term women of color has been embraced and used to replace the term minority women. Some also prefer the term of color to the term minority because they see the latter as describing a stance of subjugation and objectification"

-snip-

That article continues by providing definitions for the group referent "coloured" in Britain, South Africa, and elsewhere. Who the term "colored" refers to differs from one nation to another.

From reading Mudcat threads, I have come to understand that the group referent "Black" also has a different meaning in the UK than it does in the United States. If I understood those posts correctly, in the UK, "black" not only refers to people of Black African descent, but also refers to people whose ancestry is East Indian, Pakistani, and [perhaps?] other racial/ethnic groups.