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Spirited Yellowthroat

#b5c428
Notes

Spirited Yellowthroat (#B5C428) 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°, 66%, 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
#b5c428
RGB
rgb(181, 196, 40)
HSL
hsl(66, 66%, 46%)
HWB
hwb(66 16% 23%)
OKLCH
oklch(78.3% 0.167 115.3)
P3
color(display-p3 0.7207 0.7668 0.2874)
HSV
hsv(66, 80%, 77%)
LAB
lab(75.74% -23.29 69.49)
LCH
lch(75.74% 73.29 108.53)
CMYK
cmyk(8%, 0%, 80%, 23%)

Etymology

Spirited
adjective

An adjectival form of spirit — used as a color modifier since the seventeenth century for hues that read as animate and characterful. Spirited orange, spirited green: the implication is saturation combined with personality, a color that feels like it has agency. Sits at the bright-bucket center alongside lively and vibrant.

Yellowthroat
noun

Geothlypis trichas, the common yellowthroat — a North American warbler whose males have a black mask and bright yellow throat. The color refers to the yellow throat patch of a male yellowthroat: a saturated, slightly red yellow with the matte finish of carotenoid-pigmented feathers. Brighter than warbler.

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.

#b5c428
Original
#d2ba00
Protanopia
#d1bc37
Deuteranopia
#c1b8a8
Tritanopia
#b6b6b6
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
1.93:1
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
10.89:1

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
##B5C428
Display P3
Display P3
color(display-p3 0.7207 0.7668 0.2874)
P3 has subtle headroomOKLCH chroma 0.167

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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