The Literature Inks of the Korean brand Wearingeul, or The Color of Literature Project, consists of different series of fountain pen inks in which the colors are inspired by the color moods of literary works. The No.5 Kim So-Wol Literature ink is a four seasons ink and depicts how the Poet Kim So-Wol sees the seasons.
The Flowers on the Way - This ink portrays the color of azalea leaves withering on the road. From the overall base color of toned down pink and crimson, the ink has a bluish sheen and dries as a color close to violet.
Flowing Leaves - With summer as the background, the ink reflects the feelings of the narrator missing the lover, picking grass and throwing it into the water. Green ink with silver shimmering depicting green leaves flowing in the river.
The Song of Reed - This ink depicts the field of reed leaves swaying in the wind in the middle of an autumn sunset. This shading ink in a light brown base deepens to a red brown and shows the characteristic color of fall.
Half moon with dimmed light - The ink represents the faded moon that rises in the winter night sky. Grey base ink with a slight yellow tone and a blue shimmering close to the a sky blue.