Retro palette
Tawny Prairie
Dark anchor, working middle, light release: #004ba7, #2173e5, #4591ff, #64a2ff, #97c1ff form a tetradic retro set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#004ba7
#2173e5
#4591ff
#64a2ff
#97c1ff
The generator opens with #004ba7 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.