Jewelblue
HSL
240° · 85% · 38%
Warm Cobalt Velvet
#0f0fb3
Notes
Warm Cobalt Velvet (#0F0FB3) 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 (240°, 85%, 38%) places it in the highly saturated band at a mid 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
#0f0fb3
RGB
rgb(15, 15, 179)
HSL
hsl(240, 85%, 38%)
Tints & Shades
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Complementary
Split Complementary