What is the rarest Pug color?

The rarest color for Pugs is white. White Pugs have a predominantly white coat, which is less common than the typical fawn and black colors. 

Unfortunately, rare colored Pugs, including White Pugs, are often associated with irresponsible breeding practices. These rare colors are usually the result of breeding colors rather than focusing on the health and well-being of the dogs. These practices can lead to a higher risk of genetic health issues in the dogs, such as albinism, as well as unethical breeding conditions.