Retro palette
Prairie Boulevard
From #870022 ink through #b63d48, #d55a61, #dc7276 to #fc8e91 light, Prairie Boulevard is a monochromatic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
redretrofive-stophigh-contrast
#870022
#b63d48
#d55a61
#dc7276
#fc8e91
The generator opens with #870022 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.