Frost palette
River Library
Five frost stops with room to breathe — #004a4f grounds, #00757d and #319098 do the talking, #549da4 softens, #70bac0 lifts. The analogous bones keep it coherent across newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
cyanfrostfive-stophigh-contrast
#004a4f
#00757d
#319098
#549da4
#70bac0
The generator opens with #004a4f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.