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Antique Yellowthroat

#666648
Notes

Antique Yellowthroat (#666648) is a deep yellow 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 (60°, 17%, 34%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#666648
RGB
rgb(102, 102, 72)
HSL
hsl(60, 17%, 34%)
HWB
hwb(60 28% 60%)
OKLCH
oklch(50.2% 0.045 107.9)
P3
color(display-p3 0.4000 0.4000 0.2952)
HSV
hsv(60, 29%, 40%)
LAB
lab(42.45% -5.37 17.02)
LCH
lch(42.45% 17.85 107.51)
CMYK
cmyk(0%, 0%, 29%, 60%)

Etymology

Antique
adjective

Latin antiquus, ancient — used as a color modifier since the seventeenth century for hues that read as if from a previous era. Antique brass, antique rose: moderate-to-low saturation combined with the optical impression of historical patina. Sits at the hushed-bucket alongside aged and heritage.

Yellowthroat
noun

Geothlypis trichas, the common yellowthroat — a North American warbler whose males have a black mask and bright yellow throat. The color refers to the yellow throat patch of a male yellowthroat: a saturated, slightly red yellow with the matte finish of carotenoid-pigmented feathers. Brighter than warbler.

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.

#666648
Original
#6b6446
Protanopia
#6b6549
Deuteranopia
#6a625e
Tritanopia
#646464
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).
AAon White
5.90:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.56:1

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
##666648
Display P3
Display P3
color(display-p3 0.4000 0.4000 0.2952)
Inside sRGBOKLCH chroma 0.045

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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