In literature, "sunny yellow" is often used to evoke a sense of brightness and warmth. For instance, it paints physical landscapes with vivid imagery, as seen in a depiction of icy plains where sunny yellow belts break the monotony of blue shadows [1]. The color is employed to describe various objects, conveying a vibrant and energetic quality in everyday items like cans or design schemes [2, 3, 4]. In the context of art, sunny yellow even becomes a metaphor for luminosity—as in the case of a choice to paint something in a cheerful buttercup-inspired hue meant to recall the glow of gold [5].