In literature, “steel blue” is frequently employed as a vivid descriptor that enhances both natural landscapes and human features. The hue may evoke the calm profundity of a sky or sea, as when a narrator details a “steel blue sky” or a sea that shifts into “steel blue” hues at twilight [1], [2], [3]. Equally, it often adorns characters’ eyes and attire to suggest determination or subtle melancholy—consider the description of a character with “steel blue eyes” that seem to pierce through his surroundings [4], [5], [6]. Moreover, the color graces the plumage of birds or the delicate facets of nature, imbuing scenes with a metallic, almost otherworldly shimmer, as seen in accounts of a barn swallow’s lustrous feathers or the reflective glint on a spore’s wall [7], [8], [9]. This recurring use of steel blue not only broadens the sensory impact of the narrative but also provides a cool, reflective counterpoint to warmer tones in the text.