A Brazilian Rainbow Boa at my work had her first litter of babies back in November. All the babies came out pink and silver in color. There had been a fire about a week before the litter was born, and at first we thought the stress had caused her to lay a few days early. After their first shed, they had not gained any color. The silver got more pronounced, and the pink got a little darker. So, after two sheds, they still have not gained any real coloration, but they are a tiny bit less bright. It was the female's first clutch. Here are pictures of the male female, and one of the babies.
Sorry the pictures are not great, just got a new light tent and camera, still figuring them out.
Male (He is in shed in the photo)
Female
Baby
Assuming they don't color up, I have figured two possible options. a) The person we got the female from thought it was a Brazilian Rainbow, but it is different type of rainbow (Guyana or something) and the cross breeding caused. or b) The female carries some homozygous gene that does not express anything visually, but the het form is visual.
I do not know a ton about rainbow boa cross breeding, or what genetics are out there other than normals and hypos, so any input anyone else has would be great.