Retro palette
Thistled Mill
Five retro stops with room to breathe — #004993 grounds, #1870d3 and #3a8cf2 do the talking, #5a9df4 softens, #87bbff lifts. The tetradic bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#004993
#1870d3
#3a8cf2
#5a9df4
#87bbff
The generator opens with #004993 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.