#81BF37#81BF37

#81BF37 is a light, vivid yellow-green. Relative luminance 0.422; OKLCH L 73.6% C 0.176 H 131.0°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX#81BF37
RGBrgb(129, 191, 55)
HSLhsl(87, 55%, 48%)
HSVhsv(87, 71%, 75%)
CMYKcmyk(32.5%, 0%, 71.2%, 25.1%)
CIE-LABlab(71.01, -40.88, 58.99)
CIE-LCHlch(71.01, 71.78, 124.72°)
OKLaboklab(73.63% -0.1156 0.1328)
OKLCHoklch(73.63% 0.176 131)
XYZxyz(28.3734, 42.2036, 10.2649)
Luminance0.4220 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81BF37 #7537BF
analogous
#BFB937 #81BF37 #3DBF37
triadic
#81BF37 #3781BF #BF3781
tetradic
#81BF37 #37BFB9 #7537BF #BF373D
square
#81BF37 #37BFB9 #7537BF #BF373D
split-complementary
#81BF37 #373DBF #B937BF
monochromatic
#41601C #618F29 #81BF37 #9FD262 #BCDF91

Accessibility & contrast

On white

2.22
#81BF37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.44
#81BF37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BF37
9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81BF37#FFFFFF#000000##000000
##81BF371.002.229.449.44
#FFFFFF2.221.0021.0021.00
#0000009.4421.001.001.00
##0000009.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#C7B120
Deuteranopia (green-blind)
#BFAC43
Tritanopia (blue-blind)
#83B7A4
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #81bf37;
/* rgb */ color: rgb(129, 191, 55);
/* oklch */ color: oklch(73.6% 0.176 131.0);
Tailwind
colors: {
  custom: {
    50: '#aad276',
    500: '#81bf37',
    950: '#000000',
  },
}
SCSS
$custom: #81bf37;
$custom-light: #aad276;
$custom-dark: #000000;
JSON
{
  "hex": "#81bf37",
  "rgb": {
    "r": 129,
    "g": 191,
    "b": 55
  },
  "hsl": {
    "h": 87.353,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.7363,
    "c": 0.17611,
    "h": 131
  },
  "luminance": 0.42205
}

Semantic roles & 50–950 ramp

primary
#81BF37
secondary
#A688CA
accent
#49DF8D
background
#FAFCF7
surface
#F4F9ED
border
#CED2C8
text
#101409
muted
#7F827B

Preview Lab

Preview with #81BF37

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

Preview Lab → · Contrast checker → · Palette generator →

#81BF37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva