Minecraft wiki entry for Breeding, associated text: When lambs are born, they usually inherit the color of one of their parents, chosen at random. However, if the parents have "compatible" colors (meaning that their corresponding dye items could be combined into a third dye), the lamb inherits a mix of the parents' colors (see Dye). This holds even if one or both of the parents have just been sheared before breeding and have not yet grown their coats back. In Bedrock Edition, however, lambs do not inherit the combined colors of their parents.