#81D137#81D137

#81D137 is a light, vivid yellow-green. Relative luminance 0.505; OKLCH L 78.0% C 0.198 H 133.4°. Best body text is #000000 at 11.11:1 contrast (WCAG AA passes).

Color values

HEX#81D137
RGBrgb(129, 209, 55)
HSLhsl(91, 63%, 52%)
HSVhsv(91, 74%, 82%)
CMYKcmyk(38.3%, 0%, 73.7%, 18%)
CIE-LABlab(76.40, -48.49, 64.35)
CIE-LCHlch(76.40, 80.57, 127.00°)
OKLaboklab(78.03% -0.1363 0.144)
OKLCHoklch(78.03% 0.198 133.4)
XYZxyz(32.5428, 50.5423, 11.6547)
Luminance0.5054 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81D137 #8737D1
analogous
#CED137 #81D137 #37D13A
triadic
#81D137 #3781D1 #D13781
tetradic
#81D137 #37CED1 #8737D1 #D13A37
square
#81D137 #37CED1 #8737D1 #D13A37
split-complementary
#81D137 #3A37D1 #D137CE
monochromatic
#45731A #63A526 #81D137 #A0DC69 #C0E89B

Accessibility & contrast

On white

1.89
#81D137 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.11
#81D137 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D137
11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81D137#FFFFFF#000000##000000
##81D1371.001.8911.1111.11
#FFFFFF1.891.0021.0021.00
#00000011.1121.001.001.00
##00000011.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#D9C117
Deuteranopia (green-blind)
#CFBA46
Tritanopia (blue-blind)
#81C9B3
Achromatopsia (no color)
#BCBCBC

Design tokens & code

CSS
--color: #81d137;
/* rgb */ color: rgb(129, 209, 55);
/* oklch */ color: oklch(78.0% 0.198 133.4);
Tailwind
colors: {
  custom: {
    50: '#acdf78',
    500: '#81d137',
    950: '#000000',
  },
}
SCSS
$custom: #81d137;
$custom-light: #acdf78;
$custom-dark: #000000;
JSON
{
  "hex": "#81d137",
  "rgb": {
    "r": 129,
    "g": 209,
    "b": 55
  },
  "hsl": {
    "h": 91.169,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.7803,
    "c": 0.19828,
    "h": 133.4
  },
  "luminance": 0.50544
}

Semantic roles & 50–950 ramp

primary
#81D137
secondary
#58307C
accent
#42E697
background
#FDFEFB
surface
#F8FCF1
border
#D1D5CB
text
#11150A
muted
#81847D

Preview Lab

Preview with #81D137

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

Preview Lab → · Contrast checker → · Palette generator →

#81D137 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva