Ocean palette
Steely Mill
Five ocean stops with room to breathe — #3c71a2 grounds, #007a92 and #007e77 do the talking, #3395ae softens, #2e9a92 lifts. The complementary bones keep it coherent across book covers that read at thumbnail size.
cyanoceanfive-stop
#3c71a2
#007a92
#007e77
#3395ae
#2e9a92
The generator opens with #3c71a2 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.