Neonred
HSL
4° · 85% · 58%
Dusky Ruby Echo
#ef4539
Notes
Dusky Ruby Echo (#EF4539) 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°, 85%, 58%) 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
#ef4539
RGB
rgb(239, 69, 57)
HSL
hsl(4, 85%, 58%)