#81CB37#81CB37

#81CB37 is a light, vivid yellow-green. Relative luminance 0.477; OKLCH L 76.6% C 0.191 H 132.7°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX#81CB37
RGBrgb(129, 203, 55)
HSLhsl(90, 59%, 51%)
HSVhsv(90, 73%, 80%)
CMYKcmyk(36.5%, 0%, 72.9%, 20.4%)
CIE-LABlab(74.61, -46.00, 62.58)
CIE-LCHlch(74.61, 77.67, 126.32°)
OKLaboklab(76.56% -0.1296 0.1403)
OKLCHoklch(76.56% 0.191 132.7)
XYZxyz(31.0984, 47.6535, 11.1732)
Luminance0.4765 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81CB37 #8137CB
analogous
#CBCB37 #81CB37 #37CB37
triadic
#81CB37 #3781CB #CB3781
tetradic
#81CB37 #37CBCB #8137CB #CB3737
square
#81CB37 #37CBCB #8137CB #CB3737
split-complementary
#81CB37 #3737CB #CB37CB
monochromatic
#446C1C #629C29 #81CB37 #A0D868 #BEE498

Accessibility & contrast

On white

1.99
#81CB37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.53
#81CB37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CB37
10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81CB37#FFFFFF#000000##000000
##81CB371.001.9910.5310.53
#FFFFFF1.991.0021.0021.00
#00000010.5321.001.001.00
##00000010.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#D3BB1A
Deuteranopia (green-blind)
#C9B545
Tritanopia (blue-blind)
#82C3AE
Achromatopsia (no color)
#B8B8B8

Design tokens & code

CSS
--color: #81cb37;
/* rgb */ color: rgb(129, 203, 55);
/* oklch */ color: oklch(76.6% 0.191 132.7);
Tailwind
colors: {
  custom: {
    50: '#abdb78',
    500: '#81cb37',
    950: '#000000',
  },
}
SCSS
$custom: #81cb37;
$custom-light: #abdb78;
$custom-dark: #000000;
JSON
{
  "hex": "#81cb37",
  "rgb": {
    "r": 129,
    "g": 203,
    "b": 55
  },
  "hsl": {
    "h": 90,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.76562,
    "c": 0.19099,
    "h": 132.7
  },
  "luminance": 0.47655
}

Semantic roles & 50–950 ramp

primary
#81CB37
secondary
#AF8ED0
accent
#46E294
background
#FBFDF7
surface
#F6FBEE
border
#D0D4C9
text
#111509
muted
#80837B

Preview Lab

Preview with #81CB37

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

Preview Lab → · Contrast checker → · Palette generator →

#81CB37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva