This chapter delivers an outline of MPEG-7 color descriptors. The choice of these color descriptors is influenced by various factors [1–3]. These include (a) their capacity to classify the likeness of perceptual colors, assessed by descriptor performance in matching video segments and images using color features, (b) minimum complexity of the related feature extraction and matching procedures, because MPEG-7 systems must be capable of handling recovery tasks through broad multimedia repositories, or small mobile devices with minimal computational power, (c) coded description sizes that have a significant role in indexing and distributing descriptors through limited bandwidth networks, and (d) the descriptors’ scalability and interoperability. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.