Jewel palette
Copper Bookshop
Dark anchor, working middle, light release: #2c449d, #526fc7, #6b8be5, #7f9cea, #9fb9ff form a analogous jewel set with somewhere to stand at every lightness. Made for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
skyjewelfive-stop
#2c449d
#526fc7
#6b8be5
#7f9cea
#9fb9ff
The generator opens with #2c449d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.