Acid palette
Gleaming Porch
Dark anchor, working middle, light release: #00586b, #00849f, #35a0bb, #5baec5, #78cae3 form a tetradic acid set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanacidfive-stop
#00586b
#00849f
#35a0bb
#5baec5
#78cae3
The generator opens with #00586b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.