Acid palette
Pink Cellar
Five acid stops with room to breathe — #00566c grounds, #0081a1 and #349dbe do the talking, #5aabc7 softens, #77c7e4 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.
cyanacidfive-stop
#00566c
#0081a1
#349dbe
#5aabc7
#77c7e4
The generator opens with #00566c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.