That depends on what shade of black. If anyone remembers the dye colors, there's Soot Black and well.....the one that the retainer can only gather for you :P

But this question always puzzles me.

I'm holding a wedding on Friday in East Shroud and both me and the groom are in Immortal flames <__<;; I really need to be set on what color is immortal flames mainly, since all I've been seeing is near darkish-pale blue in Ul'dah >_<;
I'm so confused. Considering Fire is red I honestly thought that it would suit Immortal Flames better, and blue is basically a color of the ocean so I thought that it should be Maelstrom's ^-^;;