Nebula palette
Tawny Estuary
Five stops tuned to sit together without fighting — #006588 ink anchors the set, #8cd8fe opens it up, and #2e90ba, #4facd7, #6fbbe0 cross the middle in a tetradic arrangement. Tawny Estuary suits newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#006588
#2e90ba
#4facd7
#6fbbe0
#8cd8fe
The generator opens with #006588 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.