Canyon palette
Luminous Lane
From #9d2933 ink through #b54046, #007d83, #d45c5f to #009ba2 light, Luminous Lane is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size.
redcanyonfive-stop
#9d2933
#b54046
#007d83
#d45c5f
#009ba2
The generator opens with #9d2933 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.