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Luminous Jīnhuáng

#b3c227
Notes

Luminous Jīnhuáng (#B3C227) is a true yellow with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (66°, 67%, 46%) 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
#b3c227
RGB
rgb(179, 194, 39)
HSL
hsl(66, 67%, 46%)
HWB
hwb(66 15% 24%)
OKLCH
oklch(77.7% 0.166 115.4)
P3
color(display-p3 0.7129 0.7589 0.2833)
HSV
hsv(66, 80%, 76%)
LAB
lab(75.02% -23.19 69.08)
LCH
lch(75.02% 72.87 108.56)
CMYK
cmyk(8%, 0%, 80%, 24%)

Etymology

Luminous
adjective

Latin lūminōsus, full of light — adjectival suffix -ous, derived from lūmen (light). As a color modifier, luminous implies a saturated-and-light-emitting quality where the hue carries internal-glow visual register. Sits at the bright-and-saturated end of the grid, parallel to radiant and resplendent in usage.

Jīnhuáng
noun

Chinese for gold-yellow — combining jīn (gold) and huáng (yellow). Used in the imperial-yellow silks of late Qing dynasty court robes and the gilt-and-yellow lacquer of Buddhist altarpieces. The color refers to jīnhuáng-glazed Yongzheng-period porcelain: a saturated, slightly cool deep gold-yellow with the high gloss of fired glaze.

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.

#b3c227
Original
#d0b800
Protanopia
#cfba36
Deuteranopia
#bfb6a6
Tritanopia
#b4b4b4
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
1.97:1
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
10.66:1

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
##B3C227
Display P3
Display P3
color(display-p3 0.7129 0.7589 0.2833)
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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