Sinopia, also known as "sinoper" or "sinoper red", refers to a reddish-brown pigment used in fresco painting. This pigment was widely used in the medieval and Renaissance periods, and its name is derived from the city of Sinop in Turkey, where it was originally sourced. Today, there are a few synonyms for sinopia, including terra cotta, ochre, and burnt sienna. These pigments share a similar reddish-brown hue and are commonly used in painting, pottery and ceramics. While sinopia may not be widely used today, its rich history and legacy in art history ensures its continued relevance in the world of color and creativity.