Alright, so it has occurred to me that the entire Bosmeri (or Wood Elven, to those who aren't hip) race has undergone dramatic skin tone changes since previous games.
Let's put our thinking caps on and recall Oblivion, where the Bosmer were white (light skinned, Caucasian, beige, 0xEAD1A5, whatever you want to call it). http://farm5.static.flickr.com/4059/4256204229_d5be6c2350.jpg
And even further down the road was Morrowind, where the Bosmer expressed similar hues and tones to that of their Oblivion counterparts. http://www.gamebanshee.com/morrowind/races/woodelffemale.jpg
Even the http://images.uesp.net/0/0e/Lore-race-Bosmer.png for their entire race seems to have lighter skin.
So, with all that on the table, I've deducted that either the Dunmer males all died during Morrowind's unfortunate collapse and the women started breeding with only Bosmer, or the Wood Elves of Skyrim have taken on a very odd complexion, given their past.
http://img508.imageshack.us/img508/6513/gtbosmer.jpg
Hm... Gametrailer's Bosmer, Prometheus. It's broad daylight, so you can't argue that it's dark out.
http://dl.dropbox.com/u/8613775/Skyrim/SkyrimBosmer/p6Br1.jpg
And Ripten's Bosmer... with an undeclared name...
Let's face it, both of these guys look like Dunmer. Now, I'm not trying to be racist or whatever you might accuse me of, I'm just curious about why did they change their skin color.