Nordic palette
Bitter Library
Dark anchor, working middle, light release: #00464f, #00717e, #308c99, #5299a5, #6eb6c1 form a analogous nordic set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyannordicfive-stophigh-contrast
#00464f
#00717e
#308c99
#5299a5
#6eb6c1
The generator opens with #00464f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.