Some of my favorite inks are from Levenger
"I use Levenger inks on many of the pens in my collection. One of the members of my online fountain pen enthusiasts' group commented on the lovely teal in one of my demo pens. I told him it was Levenger's True Teal and he wasn't aware that a company known for quality paper and notebooks made ink. Actually, True Teal and Empyrean are two colors I use regularly for my projects because they're rich, saturated colors."