Indeed. I was casually distinguishing “heroes” from the gods and goddesses but in doing so I was probably following a modern distinction more than the ancient one. Their “heroes” were basically anyone depicted in heroic tales, regardless of their mortality or immortality. Of course, the Iliad itself describes lots of blondes, all representing ideals of beauty.
I had a classics professor who once gave a colloquium lecture on “the Greek color wheel.” Within it I recall a complex etymological study of what it meant for Achilles to be blonde—and why she claimed that the Hellenic blonde hair was not the same as our modern concept of blonde hair. But in a quick search online I was unable to find any evidence that her thesis has survived peer-review. (Of course, that means very little. Few academic classics journals are available in casual Google search.) As I recall, vaguely after all these years, she traced back to PIE (proto-Indo-European) roots and a word for torch, such that she thought “blonde Achilles” could have been anything from flaxen hair color to orange-red. That is, she suggested “flame colors.”
That same professor also fielded an interesting question about the assumption by many that Helen of Troy had some etymological relationship to Hellene (an ancient Greek.) Answer: probably not, unless one went back long before the Greeks to PIE as well. She said that the double-lambda spelling verse single-lambda pointed to two different etymological pathways, even if those pathways originally branched from a torch related word in PIE. (She managed to link the Greek word for moon as well: selene.)
Haven’t thought much about these topics in many years.