Why do clothes look darker when they get wet?The hidden physics of moisture and color perception.

From the show

Science Around You

Uncover the microscopic optical illusion that happens every time you break a sweat or step into the rain. Liquid doesn't actually alter the dye in your fabric or the pigment in the pavement. Instead, it alters the path of illumination, preventing it from reaching your eyes. You will learn exactly how physical structures manipulate human vision, proving that the original shade never actually disappeared.