UPDATE!

Thanks for all your info!

New question:

I have a dragon with Homozygous blue and a dragon with Dominant blue.  Does that give my an increased chance of getting a deviant blue baby?

From the FAQ:

"You need to select parents that carry same color or/and pattern genes. A baby born as homozygous (carrying two copies of the same gene) for color or pattern has a 1/10 chance to develop a deviant color when maturing. This mutation is phenotypic and not inherited by the offsprings of an affected pet. A gene that produces a deviant phenotype will be marked with

The color name of such pet gets asterisk (*) symbol to mark the deviation.

The only way to breed a pet with both deviant color and pattern is to choose very specific parents. One of the parents should have deviant color and the second one should have deviant pattern. The chances of getting a deviation on each color parameter still remains 1/10 so the babies with double deviation are extremely rare and valuable.

Deviant colors are available only through breeding. Wild pets can't have deviant colors.

It's not possible to get a deviant color by using Mutagen but it's possible to lose it in this way. The same concerns color mutation with the help of Forest Alchemist. However external mutation applied to an already existing pet may ruin its deviant color reversing the deviant genes to the normal state, so be careful when altering the genetics of your deviants. It's enough to change only one gene from a deviant allele pair to lose the deviant color."