Ocean palette
Malty Estuary
From #004753 ink through #007283, #308d9e, #539ba9 to #6fb7c6 light, Malty Estuary is a analogous progression that holds together at any size. Use it for podcast cover art at sixty pixels square. The darkest and lightest stops clear AA as a text pair.
cyanoceanfive-stophigh-contrast
#004753
#007283
#308d9e
#539ba9
#6fb7c6
The generator opens with #004753 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.