In literature the term “seaweed” isn’t always a straightforward reference to a marine plant; it often functions as a richly evocative color metaphor. Writers have employed the imagery of seaweed to suggest a flowing, natural texture and hue—sometimes hinting at wild, untamed beauty or even melancholy. For instance, authors compare strands of hair to “seaweed” to underscore its fluid, untidy, yet mesmerizing character, as seen when hair is likened to “tossed seaweed” ([1]) or described as resembling “ribbon seaweed” in its smoothness ([2]), and even as “lank coils of seaweed hair” evoking deep emotional connection ([3]). In another inventive twist, seaweed emerges with an unexpected tint in phrases like “rose‑red seaweed,” which playfully subverts familiar imagery while deepening the symbolic texture of the scene ([4]).