Opera palette
Calico Depot
Dark anchor, working middle, light release: #005785, #0081c2, #349de0, #5bace6, #7fc9ff form a analogous opera set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#005785
#0081c2
#349de0
#5bace6
#7fc9ff
The generator opens with #005785 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.