Nebula palette
Amber Estuary
Five stops tuned to sit together without fighting — #004c69 ink anchors the set, #72bce2 opens it up, and #0076a0, #3291bd, #55a0c5 cross the middle in a monochromatic arrangement. Amber Estuary suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#004c69
#0076a0
#3291bd
#55a0c5
#72bce2
The generator opens with #004c69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.