Storybook palette
Obsidian Beacon
From #004e5f ink through #007992, #3294ae, #56a2b8 to #73bfd5 light, Obsidian Beacon is a tetradic progression that holds together at any size. Use it for music artwork with loud darks and a glowing accent. The darkest and lightest stops clear AA for large text.
cyanstorybookfive-stop
#004e5f
#007992
#3294ae
#56a2b8
#73bfd5
The generator opens with #004e5f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.