Evidence offers no clue as to skin color. If you try to draw a more human-like Neanderthal with the eyes and nose as large as the bones indicate they would have to be, what you end up with is outlandish: 
That's courtesy of the Subversive Archaeologist: (http://thesubversivearchaeologist.blogspot.com/)
Who also notes:
"...So, I thought I'd do a wee comparison between a modern day "top" carnivore and our cousin's, the Neanderthal, face. Do you see what I see in the image below? It looks as if the felid and the Neanderthal face have more in common than either has with the modern human.
"So, I thought I'd do a wee comparison between a modern day "top" carnivore and our cousin's, the Neanderthal, face. Do you see what I see in the image below? It looks as if the felid and the Neanderthal face have more in common than either has with the modern human.The lion has a keen sense of smell. Which of the bipedal cousins do you think has the better sense of smell? Relative to the rest of the face, the big cat has a nasal aperture that's equivalent in size to that of the Neanderthal. Not so that of the modern-day hominid on the right.
A cat can spot its prey from 3 km away. Can you? Do you think the Neanderthal could?
The cat has dagger-like fangs and molar teeth that would put a deli meat-slicer to shame. "Aha!" you might say, "that chap from Forbes quarry couldn't be as effective as the lion--it doesn't have the appropriate dental accoutrements!" Umm. It's possible, isn't it, that all those flint flakes lying about came in handy for more than whittling?"
The Renegade Archaeologist missed the possibility which Vendramini notes that the huge Neanderthal eyes were for nocturnal hunting, as are the lion's.