Black Swan in Australian roses. What to expect from an ink with that name? It's definitely not black, nor does the color remind me of roses. I'd say it's a light purple color, leaning towards red. One explanation I've read for the name was the high degree of (almost black) shading. In any case, it's a nice, subtle color. It's definitely more a color for personal use than for use in the workspace, but you will still get away with taking notes in this color. No one would take offense or even frown.
The ink is well behaved. Noodler's is a no-frills ink brand. It does what it has to do. Atypical for Noodler's are the high shading and the long drying times. Very different from the inks of this brand I used before: Tchaikovsky, Heart of Darkness, Esenin, and Kingfisher.
It wasn't easy to find a color that comes close. It reminded me most of Diamine's Syrah (much darker) and a little bit of Iroshizuku's Bishamonten and Montblanc's Lavender Purple. However, these colors don't come closer either.
All in all this is a very nice ink and the first Noodler's ink I actually like. I’ll keep a pen filled with it for a while.