Canyon palette
Marigold Atelier
From #a01500 ink through #d5452f, #f5634b, #fb7e68 to #ffad9c light, Marigold Atelier is a analogous 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.
redcanyonfive-stophigh-contrast
#a01500
#d5452f
#f5634b
#fb7e68
#ffad9c
The generator opens with #a01500 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.