Nebula palette
Copper Crater
From #004b4a ink through #007675, #319190, #549e9d to #70bbb9 light, Copper Crater is a monochromatic progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
cyannebulafive-stophigh-contrast
#004b4a
#007675
#319190
#549e9d
#70bbb9
The generator opens with #004b4a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.