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Lambent Mullein

#a6ac34
Notes

Lambent Mullein (#A6AC34) is a true 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 (63°, 54%, 44%) places it in the balanced 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a6ac34
RGB
rgb(166, 172, 52)
HSL
hsl(63, 54%, 44%)
HWB
hwb(63 20% 33%)
OKLCH
oklch(71.8% 0.139 112.2)
P3
color(display-p3 0.6552 0.6737 0.2884)
HSV
hsv(63, 70%, 67%)
LAB
lab(67.92% -17.17 57.83)
LCH
lch(67.92% 60.33 106.54)
CMYK
cmyk(3%, 0%, 70%, 33%)

Etymology

Lambent
adjective

Latin lambēns, licking-lightly — present-participle of lambere (to lick). As a color modifier, lambent implies a saturated-and-soft-flickering quality, the bright color of candle-flame-and-firefly gentle-flickering light-emission against the surrounding darkness. Sits at the bright-and-soft end of the grid, parallel to glimmering and flickering in usage.

Mullein
noun

Verbascum thapsus, the European biennial whose tall yellow flower spikes appear in second-year growth. Used in classical antiquity as a torch (oiled flower spikes) and as a medicinal cough treatment. The color refers to a fresh Mullein flower spike at midsummer: a saturated, slightly cool yellow with the matte finish of small five-petaled flowers along a tall stem.

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.

#a6ac34
Original
#b9a420
Protanopia
#b9a73d
Deuteranopia
#b1a294
Tritanopia
#a2a2a2
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).
Failon White
2.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.57:1

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
##A6AC34
Display P3
Display P3
color(display-p3 0.6552 0.6737 0.2884)
P3 has subtle headroomOKLCH chroma 0.139

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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