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Vibrant Cornsilk

#99ac0b
Notes

Vibrant Cornsilk (#99AC0B) 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 (67°, 88%, 36%) 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
#99ac0b
RGB
rgb(153, 172, 11)
HSL
hsl(67, 88%, 36%)
HWB
hwb(67 4% 33%)
OKLCH
oklch(70.5% 0.161 117.4)
P3
color(display-p3 0.6141 0.6722 0.2161)
HSV
hsv(67, 94%, 67%)
LAB
lab(66.75% -24.18 67.20)
LCH
lch(66.75% 71.42 109.79)
CMYK
cmyk(11%, 0%, 94%, 33%)

Etymology

Vibrant
adjective

From the Latin vibrare, to shake — used as a color word since the seventeenth century for hues that read as alive and resonant. Vibrant orange, vibrant green: the implication is saturation combined with the optical impression of slight motion or energy. Sits at the bright-bucket center alongside vivid and lively.

Cornsilk
noun

The fine pale-yellow filaments that emerge from the top of a corn ear — each silk is the style of a single ovary, and a single corn kernel won't develop without one being pollinated. The color is fresh cornsilk on an Iowa August ear: a soft, very pale yellow with the optical translucency of plant fiber. Lighter than straw, warmer than ivory, with the agricultural-summer association of a Midwestern field at silking.

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.

#99ac0b
Original
#b8a200
Protanopia
#b7a323
Deuteranopia
#a3a292
Tritanopia
#9c9c9c
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
2.54:1
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
8.26:1

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
##99AC0B
Display P3
Display P3
color(display-p3 0.6141 0.6722 0.2161)
P3 has subtle headroomOKLCH chroma 0.161

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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