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Fluorescent Grove

#81cc6b
Notes

Fluorescent Grove (#81CC6B) is a true green 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 (106°, 49%, 61%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#81cc6b
RGB
rgb(129, 204, 107)
HSL
hsl(106, 49%, 61%)
HWB
hwb(106 42% 20%)
OKLCH
oklch(77.4% 0.151 138.9)
HSV
hsv(106, 48%, 80%)
LAB
lab(75.40% -41.47 40.95)
LCH
lch(75.40% 58.28 135.36)
CMYK
cmyk(37%, 0%, 48%, 20%)

Etymology

Fluorescent
adjective

Latin fluēre, to flow — adjectival suffix -escent. As a color modifier, fluorescent implies a saturated-and-UV-stimulated-glow quality, the bright color of fluorite-and-ZnS mineral-pigment fluorescent-lamp emission. Sits at the bright-and-cool end of the grid, parallel to phosphorescent and neon in usage.

Grove
noun

A small group of trees — often a deliberately planted cluster of Olea, Citrus, or Quercus in Mediterranean cultural landscape. Grove color refers to a Provençal olive grove canopy: a soft, slightly muted gray-green with the matte finish of mature olive foliage.

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.

#81cc6b
Original
#d1be63
Protanopia
#c6b771
Deuteranopia
#7cc6b5
Tritanopia
#b5b5b5
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
1.95:1
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
10.78:1

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