Jewelblue
HSL
228° · 69% · 35%
Warm Cobalt Thread
#1c3497
Notes
Warm Cobalt Thread (#1C3497) is a true blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (228°, 69%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#1c3497
RGB
rgb(28, 52, 151)
HSL
hsl(228, 69%, 35%)
Tints & Shades
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Complementary
Split Complementary