#81C839#81C839

#81C839 is a light, vivid yellow-green. Relative luminance 0.463; OKLCH L 75.8% C 0.186 H 132.5°. Best body text is #000000 at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#81C839
RGB	rgb(129, 200, 57)
HSL	hsl(90, 57%, 50%)
HSV	hsv(90, 72%, 78%)
CMYK	cmyk(35.5%, 0%, 71.5%, 21.6%)
CIE-LAB	lab(73.72, -44.62, 60.99)
CIE-LCH	lch(73.72, 75.57, 126.19°)
OKLab	oklab(75.84% -0.1256 0.1373)
OKLCH	oklch(75.84% 0.186 132.5)
XYZ	xyz(30.4457, 46.2698, 11.1969)
Luminance	0.4627 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C839 #8039C8

analogous

#C8C739 #81C839 #39C839

triadic

#81C839 #3981C8 #C83981

tetradic

#81C839 #39C8C7 #8039C8 #C83939

square

#81C839 #39C8C7 #8039C8 #C83939

split-complementary

#81C839 #3939C8 #C739C8

monochromatic

#44691D #62992B #81C839 #9FD569 #BEE399

Accessibility & contrast

On white

2.05

#81C839 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.25

#81C839 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C839

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C839	#FFFFFF	#000000	##000000
##81C839	1.00	2.05	10.25	10.25
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.25	21.00	1.00	1.00
##000000	10.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B920

Deuteranopia (green-blind)

#C7B346

Tritanopia (blue-blind)

#82C0AC

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #81c839;
/* rgb */ color: rgb(129, 200, 57);
/* oklch */ color: oklch(75.8% 0.186 132.5);

Tailwind

colors: {
  custom: {
    50: '#abd978',
    500: '#81c839',
    950: '#000000',
  },
}

SCSS

$custom: #81c839;
$custom-light: #abd978;
$custom-dark: #000000;

JSON

{
  "hex": "#81c839",
  "rgb": {
    "r": 129,
    "g": 200,
    "b": 57
  },
  "hsl": {
    "h": 89.79,
    "s": 56.522,
    "l": 50.392
  },
  "oklch": {
    "l": 0.75843,
    "c": 0.18609,
    "h": 132.5
  },
  "luminance": 0.46271
}

Semantic roles & 50–950 ramp

primary

#81C839

secondary

#AE8FCE

accent

#48E093

background

#FAFDF7

surface

#F5FAEE

border

#CFD3C9

text

#111409

muted

#80837B

Preview Lab

Preview with #81C839

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

Preview Lab → · Contrast checker → · Palette generator →