colors
Back to gallery

Effulgent Prowl Goldenrod

#d9ac24
Notes

Effulgent Prowl Goldenrod (#D9AC24) is a true amber with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (45°, 72%, 50%) 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
#d9ac24
RGB
rgb(217, 172, 36)
HSL
hsl(45, 72%, 50%)
HWB
hwb(45 14% 15%)
OKLCH
oklch(76.5% 0.148 88.4)
P3
color(display-p3 0.8232 0.6813 0.2666)
HSV
hsv(45, 83%, 85%)
LAB
lab(72.49% 4.47 69.02)
LCH
lch(72.49% 69.17 86.30)
CMYK
cmyk(0%, 21%, 83%, 15%)

Etymology

Effulgent
adjective

Latin effulgēns, shining-out — present-participle of effulgere, sharing root with fulgor (lightning). As a color modifier, effulgent implies a saturated-and-radiating-light-out quality, the bright color of Renaissance-Madonna halo-and-aureole gold-leaf-and-pigment emission. Sits at the bright-and-saturated end of the grid, parallel to resplendent and radiant in usage.

Prowl
modifier

Middle English prollen, to-roam-and-search. As a color modifier, prowl implies a stalking-and-hunting-and-watchful quality, the visual register of panther-and-tiger-prowl hand-stalking-and-hunting-and-watchful panther-and-tiger-and-leopard prowled-and-stalking-and-hunting-and-watchful surfaces under panther-and-tiger-and-leopard jungle-and-savanna-and-night-forest big-cat-light. Sits at the modifier-and-mood end of the grid, parallel to stalk and lurk in usage.

Goldenrod
noun

Solidago, the late-summer wildflower of North American meadows whose tall sprays of small yellow flowers signal the end of the growing season. The color refers to the flower head at full bloom: a warm, slightly muted yellow-orange with the matte finish of small clustered florets. Cooler than mustard, deeper than dandelion. The state flower of Kentucky and Nebraska, a pollinator magnet, and the original native dye for early American homespun.

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.

#d9ac24
Original
#c1ab00
Protanopia
#ccb72d
Deuteranopia
#ec9c93
Tritanopia
#acacac
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
2.13:1
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
9.88:1

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
##D9AC24
Display P3
Display P3
color(display-p3 0.8232 0.6813 0.2666)
P3 has subtle headroomOKLCH chroma 0.148

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.

Related Colors

Canvas