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Dynamic Vermont

#a9b711
Notes

Dynamic Vermont (#A9B711) is a true yellow with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (65°, 83%, 39%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#a9b711
RGB
rgb(169, 183, 17)
HSL
hsl(65, 83%, 39%)
HWB
hwb(65 7% 28%)
OKLCH
oklch(74.3% 0.166 115.2)
P3
color(display-p3 0.6729 0.7159 0.2379)
HSV
hsv(65, 91%, 72%)
LAB
lab(71.11% -22.63 70.28)
LCH
lch(71.11% 73.83 107.85)
CMYK
cmyk(8%, 0%, 91%, 28%)

Etymology

Dynamic
adjective

From the Greek dynamis, power — used as a color modifier since the late nineteenth century for hues that read as energetic and active. Dynamic red, dynamic orange: the implication is saturation combined with optical motion. Sits at the bright-bucket center alongside vibrant and lively.

Vermont
noun

The American Northeast state — and the warm gold-yellow of Vermont sugar-maple foliage at peak fall color and Vermont Grade-A medium-amber maple syrup. Vermont refers to a Vermont Acer saccharum canopy in mid-October: a saturated, slightly red yellow-orange with the optical complexity of carotenoid-rich autumn leaves.

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.

#a9b711
Original
#c5ad00
Protanopia
#c4af28
Deuteranopia
#b5ac9c
Tritanopia
#a8a8a8
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
2.22:1
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
9.47:1

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
##A9B711
Display P3
Display P3
color(display-p3 0.6729 0.7159 0.2379)
P3 has subtle headroomOKLCH chroma 0.166

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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