Monochrome palette
Leaden Bookshop
Five monochrome stops with room to breathe — #005274 grounds, #007cad and #3398ca do the talking, #58a6d2 softens, #75c3ef lifts. The tetradic bones keep it coherent across event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
skymonochromefive-stop
#005274
#007cad
#3398ca
#58a6d2
#75c3ef
The generator opens with #005274 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.