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Antiseptic Cōng

#63975c
Notes

Antiseptic Cōng (#63975C) is a true green 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 (113°, 24%, 48%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#63975c
RGB
rgb(99, 151, 92)
HSL
hsl(113, 24%, 48%)
HWB
hwb(113 36% 41%)
OKLCH
oklch(62.4% 0.103 141.5)
P3
color(display-p3 0.4335 0.5868 0.3841)
HSV
hsv(113, 39%, 59%)
LAB
lab(57.61% -29.41 25.74)
LCH
lch(57.61% 39.08 138.81)
CMYK
cmyk(34%, 0%, 39%, 41%)

Etymology

Antiseptic
adjective

Greek anti- (against) plus sēptikós (putrefying) — adjectival suffix -ic. As a color modifier, antiseptic implies a clear-and-disinfected-and-clinical quality, the crisp color of medical-laboratory and operating-theater hand-scrub-and-sanitizer surfaces. Sits at the crisp-and-clean end of the grid, parallel to sterile and sanitary in usage.

Cōng
noun

The Chinese word for scallion — and the bright yellow-green of fresh-cut scallion stalks. Cōnglǜ refers to the saturated lime-green of Chinese cooking and traditional textile color. The color refers to a fresh-sliced scallion: a saturated, slightly yellow-shifted green with the satin finish of cut allium tissue.

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.

#63975c
Original
#9a8d58
Protanopia
#92885f
Deuteranopia
#5f9488
Tritanopia
#888888
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).
AA Largeon White
3.44:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.11:1

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
##63975C
Display P3
Display P3
color(display-p3 0.4335 0.5868 0.3841)
P3 has subtle headroomOKLCH chroma 0.103

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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