Opera palette
Cornsilk Delta
Dark anchor, working middle, light release: #004871, #2570a3, #438bc0, #5f9ac7, #7bb6e5 form a analogous 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.
skyoperafive-stop
#004871
#2570a3
#438bc0
#5f9ac7
#7bb6e5
The generator opens with #004871 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.