Metamerism

Metamerism is a difficult concept to wrap one’s head around, however in layman’s terms it is loosely defined as a change in apparent color under different light sources. A couple of examples of, metamarism or metamers are; bridesmaid dresses being made from the same dye lot. Metamerism is the reason why it is suggested that all bridesmaid dresses are ordered and created at the same time to prevent a mismatch of color.

 

Another example, the necessity to paint a room in one sitting, rather than paint a bit at one time and paint the rest at another time. It creates a mismatch of shades.