Opera palette
Sienna Lodge
Dark anchor, working middle, light release: #004c69, #0076a0, #3291bd, #55a0c5, #72bce2 form a complementary opera set with somewhere to stand at every lightness. Made for craft brewery cans lined up in a cooler door. The darkest and lightest stops clear AA for large text.
cyanoperafive-stop
#004c69
#0076a0
#3291bd
#55a0c5
#72bce2
The generator opens with #004c69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.