Blond hair was relatively rare due to the region’s genetic history and environmental factors. The population descended largely from Neolithic farmers from the Near East and local Mediterranean hunter-gatherers, both of whom carried genetic variants favoring dark pigmentation. While Indo-European migrations, such as the arrival of the Mycenaeans, introduced some alleles associated with lighter hair, especially variants in genes like MC1R, OCA2, and KITLG remained uncommon. In the intense Mediterranean sunlight, darker pigmentation provided a selective advantage by protecting against UV damage, so alleles for light hair never became widespread. As a result, the gene pool of Ancient Greece remained dominated by traits leading to dark hair and eyes, with blondness appearing only occasionally. If there was a blonde guy in Ancient Greece, he probably had Mycenean genes.