#81B337#81B337

#81B337 is a light, vivid yellow-green. Relative luminance 0.372; OKLCH L 70.7% C 0.161 H 128.9°. Best body text is #000000 at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#81B337
RGB	rgb(129, 179, 55)
HSL	hsl(84, 53%, 46%)
HSV	hsv(84, 69%, 70%)
CMYK	cmyk(27.9%, 0%, 69.3%, 29.8%)
CIE-LAB	lab(67.41, -35.54, 55.34)
CIE-LCH	lch(67.41, 65.77, 122.71°)
OKLab	oklab(70.7% -0.1011 0.1252)
OKLCH	oklch(70.7% 0.161 128.9)
XYZ	xyz(25.8629, 37.1825, 9.4280)
Luminance	0.3718 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B337 #6937B3

analogous

#B3A737 #81B337 #43B337

triadic

#81B337 #3781B3 #B33781

tetradic

#81B337 #37B3A7 #6937B3 #B33743

square

#81B337 #37B3A7 #6937B3 #B33743

split-complementary

#81B337 #3743B3 #A737B3

monochromatic

#3E551A #5F8429 #81B337 #9FCD5B #BADB8A

Accessibility & contrast

On white

2.49

#81B337 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.44

#81B337 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B337

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B337	#FFFFFF	#000000	##000000
##81B337	1.00	2.49	8.44	8.44
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.44	21.00	1.00	1.00
##000000	8.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA624

Deuteranopia (green-blind)

#B5A342

Tritanopia (blue-blind)

#85AB9A

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #81b337;
/* rgb */ color: rgb(129, 179, 55);
/* oklch */ color: oklch(70.7% 0.161 128.9);

Tailwind

colors: {
  custom: {
    50: '#a9ca75',
    500: '#81b337',
    950: '#000000',
  },
}

SCSS

$custom: #81b337;
$custom-light: #a9ca75;
$custom-dark: #000000;

JSON

{
  "hex": "#81b337",
  "rgb": {
    "r": 129,
    "g": 179,
    "b": 55
  },
  "hsl": {
    "h": 84.194,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.70703,
    "c": 0.16087,
    "h": 128.9
  },
  "luminance": 0.37183
}

Semantic roles & 50–950 ramp

primary

#81B337

secondary

#9C81C5

accent

#4BDC86

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B337

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

Preview Lab → · Contrast checker → · Palette generator →