Opera palette
Nectar Beacon
Dark anchor, working middle, light release: #00658d, #0a91c6, #3cade4, #64bceb, #91d8ff form a tetradic opera set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyanoperafive-stop
#00658d
#0a91c6
#3cade4
#64bceb
#91d8ff
The generator opens with #00658d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.