Rich blue fountain pen ink with silvery shimmer made for the TAG stationery store in Kyoto, Japan, based on traditional dyeing techniques.
Ruri is a bright blue color with a deep purple tinge like the color of Lapis Lazuli stone. Originally, "Ruri" is a jewel produced on Mt. Meru, which rises in the center of the Buddhist world, and is one of the seven treasures of Buddhism. The color associated with the color of the jewel was seen as sacred.