Romans weren't blonde nordniggers
Not counting the Germans imported over the centuries to compensate for the miserable quality of the mongrelised populace and improve the quality of the legions.
Considering the several phenotypical descriptions we have of the Roman population when it was going down, it's even a miracle that the area in Rome and outside inside the old walls isn't a 3rd world cesspool.
This map largely overlooks the huge differences of appearances already noted back then. Cue the Keltoi's looks according to ancient Greeks, who if we follow to this map supposedly were as "celt" as people in the north.
Also, it does not help when taking into account that many Roman immigrants called themselves Greeks because they were born in a Greek culture, but came a middle-eastern genepool.
And if you were a girl you'd probably be super hot. :D
I mean, that's a nice mix.
The Franks took control of a nation that was defeated and subjugated by the Romans, who back then already included people of color in their imperial legions. The old Celt type was damaged by this presence, and we know that because there hasn't been any long lasting invasion other than the Roman one.
You have lots of dark-brown hair dark-brown eyes in the French population, especially in the lower economical layers. As for in Greece and Rome centuries before, the more nordid-like people were close to the ruling elite. Then it would trickle down as some elements of this elite would fail to stay on top.
A comparison of the Celts from 2500 years ago and the average French population now would quickly show this.
Difficult, this is.
There's definitely a difference one can easily spot with eyeballs Mk-I.
This, without even taking into account the story of a possible migration of Phoenicians into Ireland, who probably hoped from coastal city to coastal city, landing further north than where they used to stop for trade purposes. Then, what did Phoenicians look like during those times is also an interesting question because it's known Whites had largely settled into Anatolia and the upper part of the Middle East many thousands of years ago, eventually progressively mixing of being displaced over the centuries.
This is really a strange dispute. Some say Germanic Celts, others talk of Celtic Germans.
Plus the further north one goes to look at the people living there, when it comes to Whites they get fairer hair and lighter-colored eyes.
It isn't easy to say there's a correlation with the colder and cloudier environment, but it's impossible to totally brush it away.
I wouldn't be surprised if darker looking Whites would start to go paler after a few thousand years, adapting to this environment.
I also recall reading a translated article recently, about geckos I think, for which it was shown that they had adapted to an urban environment full of concrete in a few generations only, with their bodies experiencing clear anatomical modifications.