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Striking Hail Goldenrod

#acaa00
Notes

Striking Hail Goldenrod (#ACAA00) is a deep yellow with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (59°, 100%, 34%) places it in the highly saturated band at a dark 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
#acaa00
RGB
rgb(172, 170, 0)
HSL
hsl(59, 100%, 34%)
HWB
hwb(59 0% 33%)
OKLCH
oklch(71.6% 0.155 108.9)
P3
color(display-p3 0.6731 0.6669 0.2095)
HSV
hsv(59, 100%, 67%)
LAB
lab(67.67% -15.02 69.92)
LCH
lch(67.67% 71.52 102.12)
CMYK
cmyk(0%, 1%, 100%, 33%)

Etymology

Striking
adjective

The progressive participle of strike, to hit. Used as a color word since the seventeenth century for hues that command immediate attention. Striking red, striking blue: the implication is saturation combined with visual impact. Sits at the bright-bucket center alongside bold and punchy.

Hail
modifier

Old English hægl, hail-stones. As a color modifier, hail implies a hail-stone-and-clattering-and-spring-thunderstorm quality, the visual register of prairie-and-summer-thunderhead-hail hand-hail-stone-and-clattering-and-spring-thunderstorm prairie-and-summer-thunderhead-hail-and-Great-Plains hail-and-hail-stone-and-clattering surfaces under prairie-and-summer-thunderhead-hail-and-Great-Plains Tornado-Alley-and-Kansas-Oklahoma-storm-cell prairie-thunderhead-light. Sits at the modifier-and-weather end of the grid, parallel to sleet and flurry 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.

#acaa00
Original
#b9a200
Protanopia
#bba71d
Deuteranopia
#b99e90
Tritanopia
#9e9e9e
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
2.47:1
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
8.50:1

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
##ACAA00
Display P3
Display P3
color(display-p3 0.6731 0.6669 0.2095)
P3 has subtle headroomOKLCH chroma 0.155

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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