Opera palette
Cypress Delta
Five opera stops with room to breathe — #00619a grounds, #418bc4 and #5ea7e2 do the talking, #79b6e9 softens, #9ed3ff lifts. The triadic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#00619a
#418bc4
#5ea7e2
#79b6e9
#9ed3ff
The generator opens with #00619a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.