Jewelbluedeep
HSL
243° · 80% · 28%
Rich Cobalt Marble
#140e81
Notes
Rich Cobalt Marble (#140E81) is a deep 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 (243°, 80%, 28%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#140e81
RGB
rgb(20, 14, 129)
HSL
hsl(243, 80%, 28%)
Tints & Shades
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Complementary
Split Complementary