“Worlds of Color,” first published in Foreign Affairs in 1925, argues that the labor problem in Europe is only a facet of a much greater global labor problem, the “World Shadow” of colonial exploitation. It offers a comparative study of the Portuguese, Belgian, French, and British empires in Africa and their distinctive regimes of race relations, land ownership, and labor, paying particular attention to the fate of educated Africans in the various colonies. It scrutinizes the variety of colonial regimes and economic systems instituted by the British across Africa in their efforts to extract resources under different local conditions. The essay reflects on the proceedings of the 1923 Third Pan-African Congress and draws on impressions and information gained during Du Bois’s first visit to Africa. The essay was republished in Alain Locke’s landmark Harlem Renaissance anthology, The New Negro (1925).