Nebula palette
Mustard Library
Mustard Library runs #7b3176 through #91468b, #0f7c3b, #ae61a7 to #379755 in five measured steps, the monochromatic structure keeping every neighbor honest. Reach for it for event posters that compete with a wall of other posters.
greennebulafive-stop
#7b3176
#91468b
#0f7c3b
#ae61a7
#379755
The generator opens with #7b3176 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.