Jewel palette
Pale Gazebo
From #162ba6 ink through #385bd0, #5077ef, #658af0 to #87a9ff light, Pale Gazebo is a tetradic 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
#162ba6
#385bd0
#5077ef
#658af0
#87a9ff
The generator opens with #162ba6 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.