Storybook palette
Halcyon Foundry
From #004958 ink through #00738a, #318ea6, #539cb0 to #70b8cd light, Halcyon Foundry is a split-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.
cyanstorybookfive-stophigh-contrast
#004958
#00738a
#318ea6
#539cb0
#70b8cd
The generator opens with #004958 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.