Jewel palette
Teal Brook
Five jewel stops with room to breathe — #093e99 grounds, #3769c3 and #5185e1 do the talking, #6996e5 softens, #86b2ff lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#093e99
#3769c3
#5185e1
#6996e5
#86b2ff
The generator opens with #093e99 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.