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Sanitary Ruggine

#873407
Notes

Sanitary Ruggine (#873407) is a deep orange 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 (21°, 90%, 28%) places it in the highly saturated band at a dark 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
#873407
RGB
rgb(135, 52, 7)
HSL
hsl(21, 90%, 28%)
HWB
hwb(21 3% 47%)
OKLCH
oklch(43.7% 0.124 43.0)
P3
color(display-p3 0.4905 0.2245 0.0901)
HSV
hsv(21, 95%, 53%)
LAB
lab(33.19% 33.55 41.84)
LCH
lch(33.19% 53.63 51.27)
CMYK
cmyk(0%, 61%, 95%, 47%)

Etymology

Sanitary
adjective

Latin sānitās, health — adjectival suffix -ary. As a color modifier, sanitary implies a clear-and-clean-and-medical quality, the crisp color of Bauhaus-and-Modern clinical-and-hospital interior-architecture white-tile-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to hygienic and sterile in usage.

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.

#873407
Original
#4c4200
Protanopia
#605502
Deuteranopia
#951e2c
Tritanopia
#424242
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).
AAAon White
8.32:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.52:1

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
##873407
Display P3
Display P3
color(display-p3 0.4905 0.2245 0.0901)
P3 has subtle headroomOKLCH chroma 0.124

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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