If you're looking for dark, yeah, you might look for a used ADK Generis GT-2 like
this one. They're pretty hard to find, and at least mine is quite dark.
I take that back, actually. Listening to it more, I'm not quite sure how to characterize its tone, but probably not "dark".
Contrary to what several people have posted, I definitely would
not classify the Hamburg as dark, either. With a tube pre, it's usable. With a FET pre, it's downright bright to the point of being harsh, IMHO. Specifically, the upper mids have a presence peak at a lower frequency than the Vienna, but it is boosted more. Its highs are rolled off more than the Vienna. This makes the mic an ideal choice for brightening up a dark male vocal. If you don't want a bright mic, you do
not want the Hamburg.
Hamburg: good for brightening a male vocal. Cuts like a razor blade on tenor.

Vienna good for brightening a female vocal.
Of course, the mics the original poster is using for comparison have very hyped highs, so compared to those, most mics will be darker, but I wouldn't call any of the mics mentioned in this thread "dark". I'd call them "flat"... or in the case of the MK-319, possibly "muddy" like an SM57.
(Note: the SM57 is one of the few mics that is both muddy
and hyped. I'm not sure how Shure managed that, but somehow, they pulled it off....

No, really. The SM57 has a very significant boost in the highs. It is a very, very bright mic up to about 10 kHz, and then it stops responding, thus making it sound simultaneously hyped and very dull and lifeless.)