#81AC37#81AC37

#81AC37 is a light, vivid yellow-green. Relative luminance 0.344; OKLCH L 69.0% C 0.152 H 127.4°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX#81AC37
RGBrgb(129, 172, 55)
HSLhsl(82, 52%, 45%)
HSVhsv(82, 68%, 67%)
CMYKcmyk(25%, 0%, 68%, 32.5%)
CIE-LABlab(65.32, -32.31, 53.17)
CIE-LCHlch(65.32, 62.22, 121.29°)
OKLaboklab(69% -0.0922 0.1206)
OKLCHoklch(69% 0.152 127.4)
XYZxyz(24.4954, 34.4475, 8.9722)
Luminance0.3445 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81AC37 #6237AC
analogous
#AC9D37 #81AC37 #47AC37
triadic
#81AC37 #3781AC #AC3781
tetradic
#81AC37 #37AC9D #6237AC #AC3747
square
#81AC37 #37AC9D #6237AC #AC3747
split-complementary
#81AC37 #3747AC #9D37AC
monochromatic
#3B4F19 #5E7E28 #81AC37 #9FC957 #BAD885

Accessibility & contrast

On white

2.66
#81AC37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.89
#81AC37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81AC37
7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81AC37#FFFFFF#000000##000000
##81AC371.002.667.897.89
#FFFFFF2.661.0021.0021.00
#0000007.8921.001.001.00
##0000007.8921.001.001.00

Color blindness preview

Protanopia (red-blind)
#B5A026
Deuteranopia (green-blind)
#AF9E41
Tritanopia (blue-blind)
#86A494
Achromatopsia (no color)
#9F9F9F

Design tokens & code

CSS
--color: #81ac37;
/* rgb */ color: rgb(129, 172, 55);
/* oklch */ color: oklch(69.0% 0.152 127.4);
Tailwind
colors: {
  custom: {
    50: '#a9c574',
    500: '#81ac37',
    950: '#000000',
  },
}
SCSS
$custom: #81ac37;
$custom-light: #a9c574;
$custom-dark: #000000;
JSON
{
  "hex": "#81ac37",
  "rgb": {
    "r": 129,
    "g": 172,
    "b": 55
  },
  "hsl": {
    "h": 82.051,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.69001,
    "c": 0.15182,
    "h": 127.4
  },
  "luminance": 0.34448
}

Semantic roles & 50–950 ramp

primary
#81AC37
secondary
#967DC2
accent
#4DDB81
background
#FAFCF7
surface
#F4F8ED
border
#CED1C8
text
#101209
muted
#7F817B

Preview Lab

Preview with #81AC37

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

Preview Lab → · Contrast checker → · Palette generator →

#81AC37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva