Colonial Mexico's complex racial dynamics shaped society profoundly. The Spanish imposed a hierarchical caste system based on race and ancestry, categorizing people into groups like Español, Indio, and Mestizo. This system determined social status, economic opportunities, and legal rights. The caste system's legacy persists in modern Mexico, influencing social inequalities and cultural identity. While mestizaje (racial mixing) became central to Mexican identity, indigenous and Afro-Mexican populations still face discrimination. Understanding this history is crucial for addressing current social issues.