In literature, the term “blueberry” is sometimes employed not merely as a reference to the fruit but as an evocative color image that enriches description. In one instance, an author compares a person’s appearance to “a blueberry in a pan of milk,” using the rich, deep tint of the fruit to create a striking visual contrast against a pale background [1]. In another example, the adjective “blueberry” is applied to an eye—“his blueberry eye”—which skillfully imbues the character with an unusual, almost otherworldly intensity through the suggestion of a deep blue hue [2]. These creative uses demonstrate how “blueberry,” beyond its literal meaning, operates as a vibrant color metaphor that deepens the reader’s sensory experience of a scene.