Retro palette
Harvest Plaza
Five stops tuned to sit together without fighting — #004c77 ink anchors the set, #72bcf6 opens it up, and #0075b4, #3191d2, #55a0d8 cross the middle in a triadic arrangement. Harvest Plaza suits national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#004c77
#0075b4
#3191d2
#55a0d8
#72bcf6
The generator opens with #004c77 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.