Opera palette
Luminous Chapel
Dark anchor, working middle, light release: #004f72, #0079ac, #3295c9, #57a3d0, #74c0ee form a complementary opera set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#004f72
#0079ac
#3295c9
#57a3d0
#74c0ee
The generator opens with #004f72 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.