Retro palette
Starlit Harbor
From #775799 ink through #7b6700, #2a6da1, #96822c to #4788be light, Starlit Harbor is a analogous progression that holds together at any size. Use it for museum exhibition graphics with long sightlines.
skyretrofive-stop
#775799
#7b6700
#2a6da1
#96822c
#4788be
The generator opens with #775799 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.