Flashing Ruby Gleam

#e51e10

Notes

Flashing Ruby Gleam (#E51E10) is a true red with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (4°, 87%, 48%) 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

#e51e10

RGB

rgb(229, 30, 16)

HSL

hsl(4, 87%, 48%)