Opera palette
Terracotta Gazebo
Dark anchor, working middle, light release: #005175, #007baf, #3397cc, #58a5d3, #75c2f1 form a tetradic 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.
skyoperafive-stop
#005175
#007baf
#3397cc
#58a5d3
#75c2f1
The generator opens with #005175 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.