The name Iroshizuku is a combination of the Japanese words Iro (Coloring), expressing high standards and variation of colors, and Shizuku (Droplet), that embodies the very image of dripping water. Each ink name derives from the expressions of beautiful Japanese natural landscapes and plants, all of which contribute to the depth of each individual hue.

Akisakura (lit. Automn Cherry Blossom), the Japanese name for a Cosmos, orginates from its autumn blossoms and the resemblance of the petals to that of cherry blossoms. This pink is reminiscent of the friendly and endearing Cosmos flower.