Jewelblue
HSL
231° · 79% · 37%
Deep Cobalt Crystal
#142aa9
Notes
Deep Cobalt Crystal (#142AA9) 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 (231°, 79%, 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#142aa9
RGB
rgb(20, 42, 169)
HSL
hsl(231, 79%, 37%)
Tints & Shades
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Complementary
Split Complementary