My thanks to Ana of The Well Appointed Desk for the ink sample.
Papier Plume is an American stationary store. They have a wide variety of inks. Bayou Nightfall is one of them. It is a nice blend of green and blue. It hovers on the edge of the two colours. It is also understated enough for corporate use but it can look rather light depending on the nib size you use. I really enjoy this colour though Bayou Nightfall is a rather dry ink. Pick the pen you fill this ink with accordingly.