This was also known as the <em>sistema</em><em> de </em><em>castas</em>. This was based on the purity of bloodline also called <em>limpieza</em><span><em> de sangre</em>. The following groups were arranged according to the purity of blood and race mixtures based on the Spaniard's category known as </span><span>mestizaje</span>.
According to this, the whiter skin has more political, economic and social opportunities than the darker colored people.
These are some of the groups arranged in a descending manner from Spaniards, castizos, <span>Moriscos, mestizos</span><span>, </span>mulattoes, Indians, and Africans. The highest according to them are the groups of the Spaniards.
