The article starts:
LONDON (Reuters) - "Cheddar Man", Britain's oldest, nearly complete human skeleton, had dark skin, blue eyes and dark curly hair when he lived in what is now southwest England 10,000 years ago, scientists who read his DNA have discovered.
The finding suggests that the lighter skin pigmentation now seen as typical of northern Europeans is far more recent than previously thought, according to researchers from University College London (UCL) who took part in the project.
Cheddar Man's skin color was described as "dark to black" by the scientific team which also included researchers from London's Natural History Museum, where the skeleton is on display in the Human Evolution gallery.
From LotR Appendix F (The Languages and Peoples of the Third Age):
Of their language nothing appears in this book, save the name Forgoil which they gave to the Rohirrim (meaning Strawheads, it is said). Dunland and Dunlending are the names that the Rohirrim gave to them, because they were swarthy and dark-haired; there is thus no connexion between the word dunn in these names and the Grey-elven word Dûn 'west'.
Granted, Cheddar Man might be a bit more dark-skinned than the forebears of the Dunlendings. A better comparison might be between Cheddar Man and the Haradrim.