#81B131#81B131

#81B131 is a light, vivid yellow-green. Relative luminance 0.363; OKLCH L 70.2% C 0.162 H 128.1°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX#81B131
RGBrgb(129, 177, 49)
HSLhsl(83, 57%, 44%)
HSVhsv(83, 72%, 69%)
CMYKcmyk(27.1%, 0%, 72.3%, 30.6%)
CIE-LABlab(66.77, -35.02, 56.96)
CIE-LCHlch(66.77, 66.86, 121.59°)
OKLaboklab(70.17% -0.1001 0.1277)
OKLCHoklch(70.17% 0.162 128.1)
XYZxyz(25.3298, 36.3326, 8.5835)
Luminance0.3633 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81B131 #6131B1
analogous
#B1A131 #81B131 #41B131
triadic
#81B131 #3181B1 #B13181
tetradic
#81B131 #31B1A1 #6131B1 #B13141
square
#81B131 #31B1A1 #6131B1 #B13141
split-complementary
#81B131 #3141B1 #A131B1
monochromatic
#3B5116 #5E8124 #81B131 #9FCF51 #BADC80

Accessibility & contrast

On white

2.54
#81B131 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.27
#81B131 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B131
8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81B131#FFFFFF#000000##000000
##81B1311.002.548.278.27
#FFFFFF2.541.0021.0021.00
#0000008.2721.001.001.00
##0000008.2721.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAA51A
Deuteranopia (green-blind)
#B3A13D
Tritanopia (blue-blind)
#85A998
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #81b131;
/* rgb */ color: rgb(129, 177, 49);
/* oklch */ color: oklch(70.2% 0.162 128.1);
Tailwind
colors: {
  custom: {
    50: '#a9c872',
    500: '#81b131',
    950: '#000000',
  },
}
SCSS
$custom: #81b131;
$custom-light: #a9c872;
$custom-dark: #000000;
JSON
{
  "hex": "#81b131",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 49
  },
  "hsl": {
    "h": 82.5,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.7017,
    "c": 0.16224,
    "h": 128.1
  },
  "luminance": 0.36333
}

Semantic roles & 50–950 ramp

primary
#81B131
secondary
#9579C5
accent
#48E081
background
#FAFCF7
surface
#F4F8ED
border
#CED1C8
text
#101308
muted
#7F827B

Preview Lab

Preview with #81B131

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

Preview Lab → · Contrast checker → · Palette generator →

#81B131 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva