Opera palette
Silvery Harbor
Dark anchor, working middle, light release: #004571, #006dae, #2f88cb, #5298d1, #6eb4ef form a tetradic opera set with somewhere to stand at every lightness. Made for bakery boxes stamped with a single ink color. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004571
#006dae
#2f88cb
#5298d1
#6eb4ef
The generator opens with #004571 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.