Nebula palette
Mustard Square
Mustard Square runs #004560 through #006e97, #2f89b3, #5197bc to #6eb4d9 in five measured steps, the triadic structure keeping every neighbor honest. Reach for it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skynebulafive-stophigh-contrast
#004560
#006e97
#2f89b3
#5197bc
#6eb4d9
The generator opens with #004560 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.