Nordic palette
Sienna Library
Dark anchor, working middle, light release: #005264, #007d97, #3398b3, #58a6bd, #75c3da form a split-complementary nordic set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyannordicfive-stop
#005264
#007d97
#3398b3
#58a6bd
#75c3da
The generator opens with #005264 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.