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Lively Brittany

#a3ec80
Notes

Lively Brittany (#A3EC80) is a soft 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 (101°, 74%, 71%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. 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
#a3ec80
RGB
rgb(163, 236, 128)
HSL
hsl(101, 74%, 71%)
HWB
hwb(101 50% 7%)
OKLCH
oklch(87.1% 0.158 136.3)
P3
color(display-p3 0.7015 0.9178 0.5502)
HSV
hsv(101, 46%, 93%)
LAB
lab(86.67% -41.64 45.13)
LCH
lch(86.67% 61.41 132.69)
CMYK
cmyk(31%, 0%, 46%, 7%)

Etymology

Lively
adjective

An adjectival form of life — used as a color word since the seventeenth century for hues that read as energetic. Lively coral, lively chartreuse: the implication is saturation combined with optical liveliness, the slight visual restlessness of a color that feels animated. Sits at the bright-bucket center.

Brittany
noun

The Celtic French peninsula — and the saturated green of Breton hillsides, triskel embroidery, and the Bretagne verte (green Brittany) of inland farmland. Brittany refers to a Breton hillside in spring: a saturated, slightly cool deep green with the matte finish of high-rainfall Atlantic pasture.

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.

#a3ec80
Original
#f3dd77
Protanopia
#e8d787
Deuteranopia
#a1e5d2
Tritanopia
#d5d5d5
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
1.41:1
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
14.87:1

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
##A3EC80
Display P3
Display P3
color(display-p3 0.7015 0.9178 0.5502)
P3 has subtle headroomOKLCH chroma 0.158

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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