Jewel palette
Gleaming Square
Gleaming Square runs #004799 through #1b6fd8, #3b8bf7, #5b9df9 to #8abbff in five measured steps, the monochromatic structure keeping every neighbor honest. Reach for it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#004799
#1b6fd8
#3b8bf7
#5b9df9
#8abbff
The generator opens with #004799 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.