Opera palette
Pumice Delta
From #8c2f00 ink through #cc4900, #ec662f, #f28055 to #ffa887 light, Pumice Delta 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 for large text.
orangeoperafive-stop
#8c2f00
#cc4900
#ec662f
#f28055
#ffa887
The generator opens with #8c2f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.