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Electric Fennel

#b4e17f
Notes

Electric Fennel (#B4E17F) is a true lime with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (88°, 62%, 69%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b4e17f
RGB
rgb(180, 225, 127)
HSL
hsl(88, 62%, 69%)
HWB
hwb(88 50% 12%)
OKLCH
oklch(85.6% 0.135 129.1)
HSV
hsv(88, 44%, 88%)
LAB
lab(84.53% -30.82 43.15)
LCH
lch(84.53% 53.02 125.54)
CMYK
cmyk(20%, 0%, 44%, 12%)

Etymology

Electric
adjective

From the Greek elektron, amber — the substance whose static-electric properties were observed by Thales of Miletus. Used as a color modifier since the late nineteenth century after electric light made certain saturated colors feel attention-demanding. Electric blue, electric pink: the implication is hot luminance combined with optical impact. Sits at the bright-bucket extreme.

Fennel
noun

Foeniculum vulgare, the Mediterranean herb whose feathery yellow-green fronds and bulb-like stem base are essential to Italian and French cooking. The color refers to fresh fennel fronds: a saturated, slightly cool feathery yellow-green with the matte finish of dissected leaves. Drier than dill.

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

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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.

#b4e17f
Original
#e9d577
Protanopia
#e3d284
Deuteranopia
#b8d9c9
Tritanopia
#d0d0d0
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
1.50:1
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
14.02:1

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