Hey, for a HUD that stays eye‑friendly and still feels artistic, try a base of deep navy or charcoal—those give good contrast without draining the eyes. Add a pop of teal or turquoise for the active elements; it’s cool and calm. For alerts, a muted amber or burnt orange works—bright enough to notice but not too harsh. Finish with soft white or off‑white text for readability. That mix should keep the view sharp and your focus in place. Good luck with the mecha!