Jewelblue
HSL
240° · 83% · 37%
Deep Cobalt Echo
#1010ad
Notes
Deep Cobalt Echo (#1010AD) 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°, 83%, 37%) 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
#1010ad
RGB
rgb(16, 16, 173)
HSL
hsl(240, 83%, 37%)
Tints & Shades
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Complementary
Split Complementary