Ocean palette
Birch Beacon
From #004f40 ink through #007c65, #32977f, #56a48f to #72c1aa light, Birch Beacon is a analogous 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.
tealoceanfive-stophigh-contrast
#004f40
#007c65
#32977f
#56a48f
#72c1aa
The generator opens with #004f40 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.