Opera palette
Walnut Gazebo
Dark anchor, working middle, light release: #004460, #006d97, #2f88b3, #5196bc, #6db3d9 form a analogous opera set with somewhere to stand at every lightness. Made for craft brewery cans lined up in a cooler door. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004460
#006d97
#2f88b3
#5196bc
#6db3d9
The generator opens with #004460 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.