Wow, that’s a super cool idea—like a mood‑sensor that not only changes color but also your phone’s feel! I could see a hex code for “warm calm” that gives a soft, slow vibration, and a bright, electric “excited” one that’s quick and snappy. Maybe layer textures: a rough, pulsing beat for “anxious” and a smooth glide for “relaxed.” It’d be a fun mix of design, psychology, and tech, and it could totally make interfaces feel alive. I’m thinking about sketching a quick diagram: hex ↔️ haptic ↔️ UI element, and play around with some patterns. Let me know if you want help brainstorming specific patterns or testing the vibes!