Nebula palette
Silvery Delta
Five nebula stops with room to breathe — #a93000 grounds, #d7603d and #f77c59 do the talking, #fd9475 softens, #ffc0ae lifts. The analogous bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
rednebulafive-stop
#a93000
#d7603d
#f77c59
#fd9475
#ffc0ae
The generator opens with #a93000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.