Jewel palette
Milky Dune
From #1d448e ink through #466eb8, #6089d6, #759adb to #90b6fa light, Milky Dune is a triadic 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
#1d448e
#466eb8
#6089d6
#759adb
#90b6fa
The generator opens with #1d448e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.