To be fair, the skincolour technically does two jobs; while darker skin protects you better from sunburn, the lighter skin also absorbs vitamin D from the light (and darker skin also protects ou from getting too much of that D). That is why the skincolour gets lighter, the more north you go, as the sun does not provide as much said vitamin.

Why am I mentioning this, well, the traditional bane of nordic hemisphere people is depression due to the lack of said vitamin D, during the time the sun just don’t come up, so if anyone with a darker skintone migrates here: remenber to supplement that extra D, because even the pale snowpeople have issues getting enough naturally.