Flashing Crimson Signal

#b20a13

Notes

Flashing Crimson Signal (#B20A13) is a true red 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 (357°, 89%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#b20a13

RGB

rgb(178, 10, 19)

HSL

hsl(357, 89%, 37%)