Jewel palette
Denim Lodge
Dark anchor, working middle, light release: #2d4281, #536baa, #6c86c7, #7f96ce, #9ab2ec form a split-complementary jewel 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.
skyjewelfive-stophigh-contrast
#2d4281
#536baa
#6c86c7
#7f96ce
#9ab2ec
The generator opens with #2d4281 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.