Ultramarine

#3f00ff

Notes

Ultramarine (#3F00FF) is a true indigo with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (255°, 100%, 50%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel. Ground from lapis lazuli imported overland from a single valley in Afghanistan. Historically costlier than gold and, in the Renaissance, reserved by contract for the Virgin's robe.

HEX

#3f00ff

RGB

rgb(63, 0, 255)

HSL

hsl(255, 100%, 50%)