What is a blue fawn pitbull?

A blue fawn pit bull is a dog with a fawn coat that has a silverish cast to it. These dogs also have red noses. The color is produced by a recessive dilution gene. When a dog inherits two copies of the dilution gene, it fades out the dog's color.

A dog that inherits the genes for a black coat that also inherits two copies of the dilution gene is a blue pit bull. Blue pit bulls are a blue-silver color and have grayish noses. A dog that inherits the genes for a brown coat that also inherits two copies of the dilution gene is a blue fawn pit bull.