Monochrome palette
Crimson Hollow
From #275000 ink through #487a22, #62953f, #76a35b to #92bf76 light, Crimson Hollow is a complementary progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
chartreusemonochromefive-stop
#275000
#487a22
#62953f
#76a35b
#92bf76
The generator opens with #275000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.