Storybook palette
Mercurial Lane
Five stops tuned to sit together without fighting — #004a59 ink anchors the set, #70bacd opens it up, and #00758a, #3190a6, #549eb0 cross the middle in a tetradic arrangement. Mercurial Lane suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanstorybookfive-stophigh-contrast
#004a59
#00758a
#3190a6
#549eb0
#70bacd
The generator opens with #004a59 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.