Jewel palette
Sorrel Alley
From #284192 ink through #4e6bbc, #6786da, #7b97df to #96b4fe light, Sorrel Alley is a split-complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#284192
#4e6bbc
#6786da
#7b97df
#96b4fe
The generator opens with #284192 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.