I can about 99.8% guarantee they are blue pearls and not rili. Rilis came around 2010 according to a few websites and I've had them much longer. I got them from a reputable source and he called them blue pearls and also owned them years before rilis were even talked about. I'm not positive about the egg colors having to be a set color. I've seen snow shrimp with yellow and green eggs online.
The red you are seeing is through hybridization with the yellows.
This is what they looked like before the crossing.