What provision of the fourteenth amendment served as a cornerstone of the supreme courts decision in brown v. board of education?

provision of the fourteenth amendment that  served as a cornerstone of the supreme courts decision in brown v. board of education was: the equal protection clause
In Brown v. board of education, the court ruled out that the board of education could not ruled out brown from the university admission based on his color. This decision was made because of the equal protection clause