#81CB40#81CB40

#81CB40 is a light, vivid yellow-green. Relative luminance 0.477; OKLCH L 76.6% C 0.185 H 133.3°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX#81CB40
RGBrgb(129, 203, 64)
HSLhsl(92, 57%, 52%)
HSVhsv(92, 68%, 80%)
CMYKcmyk(36.5%, 0%, 68.5%, 20.4%)
CIE-LABlab(74.67, -45.39, 59.34)
CIE-LCHlch(74.67, 74.71, 127.42°)
OKLaboklab(76.63% -0.1272 0.1348)
OKLCHoklch(76.63% 0.185 133.3)
XYZxyz(31.3341, 47.7478, 12.4148)
Luminance0.4775 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81CB40 #8A40CB
analogous
#C7CB40 #81CB40 #40CB44
triadic
#81CB40 #4081CB #CB4081
tetradic
#81CB40 #40C7CB #8A40CB #CB4440
square
#81CB40 #40C7CB #8A40CB #CB4440
split-complementary
#81CB40 #4440CB #CB40C7
monochromatic
#46721F #63A22C #81CB40 #A1D870 #C0E5A0

Accessibility & contrast

On white

1.99
#81CB40 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.55
#81CB40 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CB40
10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81CB40#FFFFFF#000000##000000
##81CB401.001.9910.5510.55
#FFFFFF1.991.0021.0021.00
#00000010.5521.001.001.00
##00000010.5521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D3BB2B
Deuteranopia (green-blind)
#C9B64C
Tritanopia (blue-blind)
#81C3AF
Achromatopsia (no color)
#B8B8B8

Design tokens & code

CSS
--color: #81cb40;
/* rgb */ color: rgb(129, 203, 64);
/* oklch */ color: oklch(76.6% 0.185 133.3);
Tailwind
colors: {
  custom: {
    50: '#abdb7c',
    500: '#81cb40',
    950: '#000000',
  },
}
SCSS
$custom: #81cb40;
$custom-light: #abdb7c;
$custom-dark: #000000;
JSON
{
  "hex": "#81cb40",
  "rgb": {
    "r": 129,
    "g": 203,
    "b": 64
  },
  "hsl": {
    "h": 91.942,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.7663,
    "c": 0.18535,
    "h": 133.3
  },
  "luminance": 0.47749
}

Semantic roles & 50–950 ramp

primary
#81CB40
secondary
#B595D2
accent
#47E099
background
#FAFDF7
surface
#F5FBEE
border
#CFD4C9
text
#11150A
muted
#80837C

Preview Lab

Preview with #81CB40

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

Preview Lab → · Contrast checker → · Palette generator →

#81CB40 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva