Silk is so famously shimmery because of its prism-like, triangular protein structure that allows it to refract incoming light at different angles and thus to produce different colors. Yet this inherent material brilliance depends on the qualities of the silk threads and environmental conditions, like the amount and type of light. The author expands a literal approach to prismatics to metaphorically encompass the situated and contingent nature of material, bodily engagements with silks and their colors. This essay renders the prismatics of the three “mother colors” of silks in Surin, Thailand to reflect upon how colors are inseparable from sociocultural, economic, political, and historical considerations of their origins.