I've said it before but ill say it again
Marinea = Neptune
Velvet = Noire
Ivory = Blanc
Cream = Vert
but to add to it.
Lilith = Plutia
Ebon = Light (Death Note)
Citcho and Lavanna = Ed and Winry (though i think the roles are reversed XD )
Cobalt and Viriti = Frisk and Chara.. maybe :3
Royal and Maple = Sailor Neptune and Uranus (or any Yuri couple really)
Dusk = Engineer (TF2)