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Lively Ruggine

#e78e3d
Notes

Lively Ruggine (#E78E3D) is a true orange with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (29°, 78%, 57%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#e78e3d
RGB
rgb(231, 142, 61)
HSL
hsl(29, 78%, 57%)
HWB
hwb(29 24% 9%)
OKLCH
oklch(72.6% 0.143 59.4)
P3
color(display-p3 0.8571 0.5731 0.3050)
HSV
hsv(29, 74%, 91%)
LAB
lab(67.03% 27.34 55.39)
LCH
lch(67.03% 61.77 63.73)
CMYK
cmyk(0%, 39%, 74%, 9%)

Etymology

Lively
adjective

An adjectival form of life — used as a color word since the seventeenth century for hues that read as energetic. Lively coral, lively chartreuse: the implication is saturation combined with optical liveliness, the slight visual restlessness of a color that feels animated. Sits at the bright-bucket center.

Ruggine
noun

The Italian word for rust — borrowed into fashion vocabulary for the slightly muted deep orange-brown of weathered iron and autumn foliage. The color refers to a ruggine-dyed Florentine wool: a deep, slightly muted dark orange-brown with the matte finish of plant-and-iron-mordant dye. The Italian cousin of rust.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#e78e3d
Original
#a99733
Protanopia
#beab3d
Deuteranopia
#fc7a7d
Tritanopia
#9b9b9b
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon White
2.52:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.33:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##E78E3D
Display P3
Display P3
color(display-p3 0.8571 0.5731 0.3050)
P3 has subtle headroomOKLCH chroma 0.143

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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