#81BB39#81BB39

#81BB39 is a light, vivid yellow-green. Relative luminance 0.405; OKLCH L 72.7% C 0.170 H 130.5°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#81BB39
RGB	rgb(129, 187, 57)
HSL	hsl(87, 53%, 48%)
HSV	hsv(87, 70%, 73%)
CMYK	cmyk(31%, 0%, 69.5%, 26.7%)
CIE-LAB	lab(69.83, -38.99, 57.04)
CIE-LCH	lch(69.83, 69.09, 124.36°)
OKLab	oklab(72.67% -0.1103 0.129)
OKLCH	oklch(72.67% 0.17 130.5)
XYZ	xyz(27.5619, 40.5023, 10.2357)
Luminance	0.4050 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB39 #7339BB

analogous

#BBB439 #81BB39 #40BB39

triadic

#81BB39 #3981BB #BB3981

tetradic

#81BB39 #39BBB4 #7339BB #BB3940

square

#81BB39 #39BBB4 #7339BB #BB3940

split-complementary

#81BB39 #3940BB #B439BB

monochromatic

#405D1C #618C2B #81BB39 #9ECF62 #BBDD91

Accessibility & contrast

On white

2.31

#81BB39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#81BB39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB39

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB39	#FFFFFF	#000000	##000000
##81BB39	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)

#C3AD25

Deuteranopia (green-blind)

#BBA944

Tritanopia (blue-blind)

#84B3A1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bb39;
/* rgb */ color: rgb(129, 187, 57);
/* oklch */ color: oklch(72.7% 0.170 130.5);

Tailwind

colors: {
  custom: {
    50: '#aad077',
    500: '#81bb39',
    950: '#000000',
  },
}

SCSS

$custom: #81bb39;
$custom-light: #aad077;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb39",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 57
  },
  "hsl": {
    "h": 86.769,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.72669,
    "c": 0.16975,
    "h": 130.5
  },
  "luminance": 0.40503
}

Semantic roles & 50–950 ramp

primary

#81BB39

secondary

#A487C8

accent

#4BDD8C

background

#FAFCF7

surface

#F4F9ED

border

#CED2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BB39

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

Preview Lab → · Contrast checker → · Palette generator →