Monochrome palette
Caramel Bookshop
From #004271 ink through #006ab0, #2e85ce, #5095d3 to #6cb1f1 light, Caramel Bookshop is a complementary progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skymonochromefive-stophigh-contrast
#004271
#006ab0
#2e85ce
#5095d3
#6cb1f1
The generator opens with #004271 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.