Vert Empire from J Herbin has mixed reviews over on Goulet Pens.
The ink looks like a grayish green here and that is definitely in line with what some of the commenters have to say about it. However, the swab that Goulet shows is more green that I’m showing. This could be a factor of different papers used and how things look when they are scanned.
Love this one. I use it in a TWSBI 1.1 stub, and it’s a beautiful dusky green. Shades nicely too. Definitely greener than gray, but very muted. But then, I like muted inks!