Jewel palette
Plum Dune
From #3750a7 ink through #5e7bd1, #7897ef, #8ca8f4 to #b0c6ff light, Plum Dune is a analogous progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
skyjewelfive-stop
#3750a7
#5e7bd1
#7897ef
#8ca8f4
#b0c6ff
The generator opens with #3750a7 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.