1#: Just your regular black skinned, white haired, purple eyed drow.
Whats wrong with simply drow?... hmmm...
Terigith might not be bad, sounds evil. Erigith might work as well, not completely sure.
2#: As above but with a slight red taint to their skin. Their hair is red.
Sounds like fierce fellas, might work with a more brutish sounding name. Perhaps Ratuman... or Kragari.. hmmmm... Craltan might work well as well...
3#: As #1 but with lightblue hair instead of white.
Lightblue hair, sounds more noblish. Taeren... or Sesmin... what about Leshmore...
4#: As #3 but with grey skin instead of black
Thats a problem, makes em appear even nobler. Lergaund... or Perishim... or Thetomin....
5#: Grey skin, golden yellow hair, purple eyes.
Phreaks. I would think that the other drow might find them too alike to surface dwelling elves. I think I might need a little bit inspiration on the last two before I make any further comments (boy, that sounded politically correct.)..