Definition: Colorism is a practice of discrimination by which those with lighter skin are treated more favorably than those with darker skin. In the African-American community, this traditionally played out via the paper bag test. Those lighter than the standard paper lunch bag were allowed entry into fraternities, sororities and other realms of black upper class life, while dark-skinned blacks were excluded. The Spike Lee film “School Daze” is an exploration of colorism.
Colorism mirrors white supremacy in that those with lighter skin are awarded privileges their dark-skinned counterparts aren't--strictly based on skin color.