There are beings of Sirius naturally existing in greater dimensions compared with us currently on Earth, that would certainly be called the Blue race. However as most of us know hearts who incarnate onto this earth which is currently in the lesser Third Dimensional world of presence do not incarnate sirian beings on mother Earth in human form with sirian starseed just what would be deemed blue skin.
When Sirians are explained in the terms of Earth races, it is because Sirian starseed due to genetic & DNA coding have a close web link genetically to certain races on Earth. Based on just what Jelaila Starr, of the nibiruancouncil.com has specified that the majority of Etheric Sirians are found among the black, red and brown races of Planet. By meaning obviously bulk does not mean all, there are superstar beings that on Planet would be identified as white (Caucasian) or closer to it, that have their star origins in Sirius. So the reasons explained above are why several who described the Sirian starseed racial/physical features do it terms of Earth races. There does already existing genetical & bodily resemblances.
To clear up the bulk of souls who originate from the Sirius Superstar System which incarnate onto Planet in human kind are discovered between specific races due mainly to a genetic DNA link. Although this does not mean all superstar beings that exist within these races have their beginnings within Sirius. Some Black/Brown Starseeds originate from Orion. Also as an example a significant number of Starseeds who would be classed as white in the world have their beginnings within the Pleaides, but this not equates to all.
This is merely a straightforward failure in regards to our Sirian brothers & sis, it of course goes a deeper today is not the time for me to enter into it. If anyone wants to elaborate please feel free.