Retro palette
Mossy Square
Dark anchor, working middle, light release: #17669d, #4c90c7, #68ace5, #82bbec, #aad8ff form a analogous retro set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#17669d
#4c90c7
#68ace5
#82bbec
#aad8ff
The generator opens with #17669d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.