Opera palette
Harbor Fen
Five opera stops with room to breathe — #0069a8 grounds, #0094e9 and #4cb1ff do the talking, #75c0ff softens, #b2dbff lifts. The triadic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#0069a8
#0094e9
#4cb1ff
#75c0ff
#b2dbff
The generator opens with #0069a8 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.