Nebula palette
Seafoam Crossing
From #005354 ink through #007f80, #349a9b, #58a8a8 to #75c4c4 light, Seafoam Crossing is a tetradic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#005354
#007f80
#349a9b
#58a8a8
#75c4c4
The generator opens with #005354 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.