Mazda color codes are normally on the drivers door jamb; some models hide them in the engine compartment. If not on the drivers door jamb, finding the code may take extra work. Codes are typically two or three digits, made of numbers and letters. Example: 21R. 21R is called Moonlight Gray Metallic Clearcoat in one naming, Grey Clearcoat by another name, or Moonstone Clearcoat by another name. Marketing may change the color name.