Pastel palette
Sable Crossing
Five pastel stops with room to breathe — #004c40 grounds, #007866 and #319380 do the talking, #54a08f softens, #70bcab lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
tealpastelfive-stop
#004c40
#007866
#319380
#54a08f
#70bcab
The generator opens with #004c40 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.