Genealogy /
Why are some Polish people dark complected, and others very light [511]
Large numbers of so-called "North" even "Nordic" Europeans may indeed often exhibit dark (at times wavy) hair and dark eyes. What distinguishes therefore a "dark" Pole, German, or Scandinavian from a Belgian, Frenchman, Italian etc. is above all in my experience the facial bone structure, usually squarish, occasionally oval among Poles, lantern-jawed and with low foreheads!
An acquaintance of mine from Wrocław aka Breslau has both darker, if coarser, facial hair than I (who am Jewish i.e. of Semitic origin) as well as dark brown eyes, yet is to my mind unmistakably "Polish" in outward semblence. Upon first bumping into one another at an international student gathering many years ago, I instantly started speaking to him in Polish.
Turned out I was right:-)