#81BB37#81BB37

#81BB37 is a light, vivid yellow-green. Relative luminance 0.405; OKLCH L 72.7% C 0.171 H 130.4°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#81BB37
RGB	rgb(129, 187, 55)
HSL	hsl(86, 55%, 47%)
HSV	hsv(86, 71%, 73%)
CMYK	cmyk(31%, 0%, 70.6%, 26.7%)
CIE-LAB	lab(69.81, -39.13, 57.78)
CIE-LCH	lch(69.81, 69.78, 124.10°)
OKLab	oklab(72.65% -0.1109 0.1303)
OKLCH	oklch(72.65% 0.171 130.4)
XYZ	xyz(27.5130, 40.4827, 9.9781)
Luminance	0.4048 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB37 #7137BB

analogous

#BBB337 #81BB37 #3FBB37

triadic

#81BB37 #3781BB #BB3781

tetradic

#81BB37 #37BBB3 #7137BB #BB373F

square

#81BB37 #37BBB3 #7137BB #BB373F

split-complementary

#81BB37 #373FBB #B337BB

monochromatic

#405C1B #608C29 #81BB37 #9ED05F #BBDE8E

Accessibility & contrast

On white

2.31

#81BB37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#81BB37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB37

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB37	#FFFFFF	#000000	##000000
##81BB37	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD21

Deuteranopia (green-blind)

#BBA943

Tritanopia (blue-blind)

#84B3A1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bb37;
/* rgb */ color: rgb(129, 187, 55);
/* oklch */ color: oklch(72.7% 0.171 130.4);

Tailwind

colors: {
  custom: {
    50: '#aad076',
    500: '#81bb37',
    950: '#000000',
  },
}

SCSS

$custom: #81bb37;
$custom-light: #aad076;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb37",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 55
  },
  "hsl": {
    "h": 86.364,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.72653,
    "c": 0.17106,
    "h": 130.4
  },
  "luminance": 0.40484
}

Semantic roles & 50–950 ramp

primary

#81BB37

secondary

#A385C9

accent

#4ADE8B

background

#FAFCF7

surface

#F4F9ED

border

#CED2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BB37

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

Preview Lab → · Contrast checker → · Palette generator →