#81CF38#81CF38

#81CF38 is a light, vivid yellow-green. Relative luminance 0.496; OKLCH L 77.5% C 0.195 H 133.3°. Best body text is #000000 at 10.92:1 contrast (WCAG AA passes).

Color values

HEX#81CF38
RGBrgb(129, 207, 56)
HSLhsl(91, 61%, 52%)
HSVhsv(91, 73%, 81%)
CMYKcmyk(37.7%, 0%, 72.9%, 18.8%)
CIE-LABlab(75.81, -47.60, 63.43)
CIE-LCHlch(75.81, 79.30, 126.89°)
OKLaboklab(77.55% -0.1338 0.1422)
OKLCHoklch(77.55% 0.195 133.3)
XYZxyz(32.0794, 49.5768, 11.6196)
Luminance0.4958 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81CF38 #8638CF
analogous
#CDCF38 #81CF38 #38CF3B
triadic
#81CF38 #3881CF #CF3881
tetradic
#81CF38 #38CDCF #8638CF #CF3B38
square
#81CF38 #38CDCF #8638CF #CF3B38
split-complementary
#81CF38 #3B38CF #CF38CD
monochromatic
#45711B #63A327 #81CF38 #A0DB69 #BFE79B

Accessibility & contrast

On white

1.92
#81CF38 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.92
#81CF38 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CF38
10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81CF38#FFFFFF#000000##000000
##81CF381.001.9210.9210.92
#FFFFFF1.921.0021.0021.00
#00000010.9221.001.001.00
##00000010.9221.001.001.00

Color blindness preview

Protanopia (red-blind)
#D7BF1B
Deuteranopia (green-blind)
#CDB947
Tritanopia (blue-blind)
#81C7B2
Achromatopsia (no color)
#BBBBBB

Design tokens & code

CSS
--color: #81cf38;
/* rgb */ color: rgb(129, 207, 56);
/* oklch */ color: oklch(77.5% 0.195 133.3);
Tailwind
colors: {
  custom: {
    50: '#abde78',
    500: '#81cf38',
    950: '#000000',
  },
}
SCSS
$custom: #81cf38;
$custom-light: #abde78;
$custom-dark: #000000;
JSON
{
  "hex": "#81cf38",
  "rgb": {
    "r": 129,
    "g": 207,
    "b": 56
  },
  "hsl": {
    "h": 90.993,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.77547,
    "c": 0.19529,
    "h": 133.3
  },
  "luminance": 0.49578
}

Semantic roles & 50–950 ramp

primary
#81CF38
secondary
#B390D3
accent
#44E497
background
#FBFDF7
surface
#F6FBEE
border
#D0D4C9
text
#11150A
muted
#80837C

Preview Lab

Preview with #81CF38

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

Preview Lab → · Contrast checker → · Palette generator →

#81CF38 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva