Radiant Cobalt Flare

#0300a8

Notes

Radiant Cobalt Flare (#0300A8) 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 (241°, 100%, 33%) 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

#0300a8

RGB

rgb(3, 0, 168)

HSL

hsl(241, 100%, 33%)