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Sanitary Shikon

#553d60
Notes

Sanitary Shikon (#553D60) is a deep violet 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 (281°, 22%, 31%) places it in the muted 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#553d60
RGB
rgb(85, 61, 96)
HSL
hsl(281, 22%, 31%)
HWB
hwb(281 24% 62%)
OKLCH
oklch(40.1% 0.065 314.8)
P3
color(display-p3 0.3190 0.2430 0.3678)
HSV
hsv(281, 36%, 38%)
LAB
lab(29.70% 17.74 -16.69)
LCH
lch(29.70% 24.36 316.74)
CMYK
cmyk(11%, 36%, 0%, 62%)

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.

Shikon
noun

Japanese 紫根, gromwell root (Lithospermum erythrorhizon) — the purple-root dye source for traditional Japanese murasaki and the medicinal-herb base for the eponymous shikon ointment used in burn treatment. Shikon color refers to a freshly harvested Lithospermum erythrorhizon root cross-section: a saturated, slightly cool deep violet with the matte finish of fresh root dye on hand-spun silk.

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.

#553d60
Original
#384561
Protanopia
#3d475f
Deuteranopia
#54414a
Tritanopia
#454545
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
##553D60
Display P3
Display P3
color(display-p3 0.3190 0.2430 0.3678)
Inside sRGBOKLCH chroma 0.065

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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