Opera palette
Calico Estuary
Five opera stops with room to breathe — #6f2100 grounds, #ad3800 and #cc552a do the talking, #d36d4b softens, #f28966 lifts. The monochromatic bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
orangeoperafive-stophigh-contrast
#6f2100
#ad3800
#cc552a
#d36d4b
#f28966
The generator opens with #6f2100 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.