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Sanitary Sindoor

#7d2739
Notes

Sanitary Sindoor (#7D2739) is a deep red with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (347°, 52%, 32%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#7d2739
RGB
rgb(125, 39, 57)
HSL
hsl(347, 52%, 32%)
HWB
hwb(347 15% 51%)
OKLCH
oklch(40.9% 0.119 11.7)
P3
color(display-p3 0.4520 0.1771 0.2272)
HSV
hsv(347, 69%, 49%)
LAB
lab(29.68% 38.52 9.48)
LCH
lch(29.68% 39.67 13.82)
CMYK
cmyk(0%, 69%, 54%, 51%)

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.

Sindoor
noun

The vermillion powder applied to the parted hair of married Hindu women — traditionally derived from cinnabar and turmeric, more recently from synthetic dyes. The color refers to fresh sindoor in a wedding ceremony: a saturated, slightly orange-shifted bright red with the powdery finish of mineral pigment. Brighter than vermillion, warmer than coral, with the social weight of a color tied to a single life-stage marker.

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.

#7d2739
Original
#3b3b39
Protanopia
#524c37
Deuteranopia
#89172e
Tritanopia
#3b3b3b
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
9.45:1
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
2.22:1

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
##7D2739
Display P3
Display P3
color(display-p3 0.4520 0.1771 0.2272)
P3 has subtle headroomOKLCH chroma 0.119

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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