#81B140#81B140

#81B140 is a light, vivid yellow-green. Relative luminance 0.365; OKLCH L 70.3% C 0.152 H 129.2°. Best body text is #000000 at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#81B140
RGB	rgb(129, 177, 64)
HSL	hsl(85, 47%, 47%)
HSV	hsv(85, 64%, 69%)
CMYK	cmyk(27.1%, 0%, 63.8%, 30.6%)
CIE-LAB	lab(66.89, -33.94, 51.08)
CIE-LCH	lch(66.89, 61.33, 123.60°)
OKLab	oklab(70.3% -0.0959 0.1174)
OKLCH	oklch(70.3% 0.152 129.2)
XYZ	xyz(25.7007, 36.4809, 10.5369)
Luminance	0.3648 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B140 #7040B1

analogous

#B1A940 #81B140 #48B140

triadic

#81B140 #4081B1 #B14081

tetradic

#81B140 #40B1A9 #7040B1 #B14048

square

#81B140 #40B1A9 #7040B1 #B14048

split-complementary

#81B140 #4048B1 #A940B1

monochromatic

#3F571F #608430 #81B140 #9EC866 #BBD893

Accessibility & contrast

On white

2.53

#81B140 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.30

#81B140 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B140

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B140	#FFFFFF	#000000	##000000
##81B140	1.00	2.53	8.30	8.30
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.30	21.00	1.00	1.00
##000000	8.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A532

Deuteranopia (green-blind)

#B2A249

Tritanopia (blue-blind)

#85AA99

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #81b140;
/* rgb */ color: rgb(129, 177, 64);
/* oklch */ color: oklch(70.3% 0.152 129.2);

Tailwind

colors: {
  custom: {
    50: '#a9c87a',
    500: '#81b140',
    950: '#000000',
  },
}

SCSS

$custom: #81b140;
$custom-light: #a9c87a;
$custom-dark: #000000;

JSON

{
  "hex": "#81b140",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 64
  },
  "hsl": {
    "h": 85.487,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.70297,
    "c": 0.1516,
    "h": 129.2
  },
  "luminance": 0.36482
}

Semantic roles & 50–950 ramp

primary

#81B140

secondary

#A289C3

accent

#51D78A

background

#FAFCF7

surface

#F4F8EE

border

#CED1C9

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B140

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →