The Supreme Court cases Sipuel v. Boared of Regents and Mclaurin v. Oklahoma State Regents were both based on which constitutional amendment?

McLaurin v. Oklahoma State Regents for Higher Education, legal case in which the U. S. Supreme Court ruled unanimously (9-0), on June 5, 1950, that racial segregation within the facilities and institutions of colleges and universities is inconsistent with the equal protection clause of the Fourteenth Amendment.

(14th amendment)