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Searing Geel

#aca304
Notes

Searing Geel (#ACA304) is a true 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 (57°, 95%, 35%) 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
#aca304
RGB
rgb(172, 163, 4)
HSL
hsl(57, 95%, 35%)
HWB
hwb(57 2% 33%)
OKLCH
oklch(70.1% 0.148 105.6)
P3
color(display-p3 0.6684 0.6404 0.2050)
HSV
hsv(57, 98%, 67%)
LAB
lab(65.73% -11.34 67.99)
LCH
lch(65.73% 68.93 99.47)
CMYK
cmyk(0%, 5%, 98%, 33%)

Etymology

Searing
adjective

Old English sēarian, to wither — present-participle of sear. As a color modifier, searing implies a saturated-and-burning-touch-hot quality, the bright color of cast-iron-griddle high-heat surface-emission. Sits at the bright-and-warm end of the grid, parallel to scorching and blazing in usage.

Geel
noun

The Dutch word for yellow — used in the painted facades of Amsterdam canal houses, the Vermeer-painted lemon yellow of Dutch genre painting, and the bright yellow tulip cultivars of Dutch flower auctions. The color refers to geel-painted seventeenth-century Dutch shutters: a saturated, slightly cool yellow with the matte finish of lead-and-oil paint.

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.

#aca304
Original
#b39d00
Protanopia
#b6a21d
Deuteranopia
#ba978a
Tritanopia
#999999
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
2.63:1
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
7.99:1

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
##ACA304
Display P3
Display P3
color(display-p3 0.6684 0.6404 0.2050)
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.

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