Retro palette
Atlas Plaza
From #3b5ab0 ink through #6385db, #7da1fa, #92b2fe to #bcd1ff light, Atlas Plaza is a analogous progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#3b5ab0
#6385db
#7da1fa
#92b2fe
#bcd1ff
The generator opens with #3b5ab0 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.