Jewel palette
Crimson Brook
From #006f98 ink through #3a9ac7, #59b6e5, #79c5ed to #a8e0ff light, Crimson Brook 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 for large text.
cyanjewelfive-stop
#006f98
#3a9ac7
#59b6e5
#79c5ed
#a8e0ff
The generator opens with #006f98 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.