Disco palette
Rocky Cellar
From #005082 ink through #0079c1, #3295df, #57a4e4 to #78c1ff light, Rocky Cellar is a analogous progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skydiscofive-stop
#005082
#0079c1
#3295df
#57a4e4
#78c1ff
The generator opens with #005082 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.