Flashing Basil Signal

#15ef53

Notes

Flashing Basil Signal (#15EF53) is a true green 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 (137°, 87%, 51%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#15ef53

RGB

rgb(21, 239, 83)

HSL

hsl(137, 87%, 51%)