Nebula palette
Cobalt Library
Five stops tuned to sit together without fighting — #004661 ink anchors the set, #6fb6d9 opens it up, and #007097, #308bb3, #5299bc cross the middle in a tetradic arrangement. Cobalt Library suits coffee bags and cafe menus that need appetite on crowded shelves. The darkest and lightest stops clear AA as a text pair.
cyannebulafive-stophigh-contrast
#004661
#007097
#308bb3
#5299bc
#6fb6d9
The generator opens with #004661 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.