In literary descriptions, dark green is widely employed as a symbol of nature’s lush vitality as well as its mysterious and sometimes melancholic aspects. It frequently appears in botanical detail, describing leaves, needles, and canopies with precision as in the depiction of leathery leaves that are "dark green on both sides" ([1]) or the glossy leaflets that contrast with their paler undersides ([2], [3]). At times it adorns inanimate objects and settings—evoking rich textures and atmospheres, from the worn velvet cover of an old book ([4]) to the uniforms or even architectural elements that set the tone of a scene ([5], [6]). This dual role of dark green—as both a precise descriptive term in natural history and a marker of mood in narrative prose—demonstrates its versatility and enduring appeal in literature ([7], [8], [9]).