The racial ideology conceived by the Nazis graded humans on a scale of pure Aryan to non-Aryan, with the latter viewed as subhuman. At the top of the scale of pure Aryans were Germans and other Germanic peoples including the Dutch, Scandinavians, and the English as well as other peoples such as some northern Italians and the French, who were said to have a suitable admixture of Germanic blood. Nazi policies labeled Romani people, people of color, and Slavs (mainly Poles, Serbs, Russians, Belarusians, Ukrainians and Czechs) as inferior non-Aryan subhumans. Jews were at the bottom of the hierarchy, considered inhuman and thus unworthy of life. In accordance with Nazi racial ideology, approximately six million Jews were killed in the Holocaust. 2.5 million ethnic Poles, 0.5 million ethnic Serbs and 0.22–0.5 million Romani were killed by the regime and its collaborators.