Retro palette
Sienna Foundry
Sienna Foundry runs #003e88 through #2967bb, #4483d9, #5f93dd to #7aaffc in five measured steps, the complementary structure keeping every neighbor honest. Reach for it for podcast cover art at sixty pixels square. The darkest and lightest stops clear AA as a text pair.
skyretrofive-stophigh-contrast
#003e88
#2967bb
#4483d9
#5f93dd
#7aaffc
The generator opens with #003e88 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.