Vivid Cobalt Halo

#0d0abd

Notes

Vivid Cobalt Halo (#0D0ABD) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (241°, 90%, 39%) 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

#0d0abd

RGB

rgb(13, 10, 189)

HSL

hsl(241, 90%, 39%)