Nebula palette
Indigo Boulevard
From #00678c ink through #0093c6, #39afe4, #63beeb to #92daff light, Indigo Boulevard is a analogous progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#00678c
#0093c6
#39afe4
#63beeb
#92daff
The generator opens with #00678c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.