Retro palette
Mustard Library
Dark anchor, working middle, light release: #1a46bc, #4374e7, #6192ff, #79a4ff, #a5c3ff form a tetradic retro set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
skyretrofive-stop
#1a46bc
#4374e7
#6192ff
#79a4ff
#a5c3ff
The generator opens with #1a46bc as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.