Blue Hour palette
Grape Mill
From #004381 ink through #306caf, #4b87cc, #6497d2 to #80b3f1 light, Grape Mill is a complementary progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
skybluehourfive-stophigh-contrast
#004381
#306caf
#4b87cc
#6497d2
#80b3f1
The generator opens with #004381 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.