Opera palette
Umber Cottage
Dark anchor, working middle, light release: #005688, #0080c6, #349ce4, #5bace9, #83c8ff form a split-complementary 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 for large text.
skyoperafive-stop
#005688
#0080c6
#349ce4
#5bace9
#83c8ff
The generator opens with #005688 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.