#81D031#81D031

#81D031 is a light, highly saturated yellow-green. Relative luminance 0.500; OKLCH L 77.7% C 0.200 H 133.0°. Best body text is #000000 at 11.00:1 contrast (WCAG AA passes).

Color values

HEX#81D031
RGBrgb(129, 208, 49)
HSLhsl(90, 63%, 50%)
HSVhsv(90, 76%, 82%)
CMYKcmyk(38%, 0%, 76.4%, 18.4%)
CIE-LABlab(76.07, -48.42, 65.98)
CIE-LCHlch(76.07, 81.85, 126.27°)
OKLaboklab(77.75% -0.1365 0.1466)
OKLCHoklch(77.75% 0.2 133)
XYZxyz(32.1631, 49.9991, 10.8613)
Luminance0.5000 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81D031 #8031D0
analogous
#D0CF31 #81D031 #32D031
triadic
#81D031 #3181D0 #D03181
tetradic
#81D031 #31D0CF #8031D0 #D03132
square
#81D031 #31D0CF #8031D0 #D03132
split-complementary
#81D031 #3132D0 #CF31D0
monochromatic
#446E19 #629F24 #81D031 #9FDB63 #BEE795

Accessibility & contrast

On white

1.91
#81D031 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.00
#81D031 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D031
11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81D031#FFFFFF#000000##000000
##81D0311.001.9111.0011.00
#FFFFFF1.911.0021.0021.00
#00000011.0021.001.001.00
##00000011.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#D9C004
Deuteranopia (green-blind)
#CEB942
Tritanopia (blue-blind)
#82C8B2
Achromatopsia (no color)
#BCBCBC

Design tokens & code

CSS
--color: #81d031;
/* rgb */ color: rgb(129, 208, 49);
/* oklch */ color: oklch(77.7% 0.200 133.0);
Tailwind
colors: {
  custom: {
    50: '#acdf75',
    500: '#81d031',
    950: '#000000',
  },
}
SCSS
$custom: #81d031;
$custom-light: #acdf75;
$custom-dark: #000000;
JSON
{
  "hex": "#81d031",
  "rgb": {
    "r": 129,
    "g": 208,
    "b": 49
  },
  "hsl": {
    "h": 89.811,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.77747,
    "c": 0.20029,
    "h": 133
  },
  "luminance": 0.50001
}

Semantic roles & 50–950 ramp

primary
#81D031
secondary
#522E77
accent
#42E693
background
#FDFEFB
surface
#F8FCF1
border
#D1D5CB
text
#111509
muted
#81847D

Preview Lab

Preview with #81D031

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

Preview Lab → · Contrast checker → · Palette generator →

#81D031 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva