Acid palette
Vintage Bazaar
Five acid stops with room to breathe — #004b49 grounds, #007674 and #31918f do the talking, #549e9c softens, #70bbb8 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanacidfive-stophigh-contrast
#004b49
#007674
#31918f
#549e9c
#70bbb8
The generator opens with #004b49 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.