#81C439#81C439

#81C439 is a light, vivid yellow-green. Relative luminance 0.444; OKLCH L 74.9% C 0.181 H 131.9°. Best body text is #000000 at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#81C439
RGB	rgb(129, 196, 57)
HSL	hsl(89, 55%, 50%)
HSV	hsv(89, 71%, 77%)
CMYK	cmyk(34.2%, 0%, 70.9%, 23.1%)
CIE-LAB	lab(72.52, -42.91, 59.78)
CIE-LCH	lch(72.52, 73.59, 125.67°)
OKLab	oklab(74.87% -0.121 0.1348)
OKLCH	oklch(74.87% 0.181 131.9)
XYZ	xyz(29.5314, 44.4412, 10.8922)
Luminance	0.4444 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C439 #7C39C4

analogous

#C4C239 #81C439 #3BC439

triadic

#81C439 #3981C4 #C43981

tetradic

#81C439 #39C4C2 #7C39C4 #C4393B

square

#81C439 #39C4C2 #7C39C4 #C4393B

split-complementary

#81C439 #393BC4 #C239C4

monochromatic

#43651D #62952B #81C439 #9FD367 #BDE197

Accessibility & contrast

On white

2.12

#81C439 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.89

#81C439 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C439

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C439	#FFFFFF	#000000	##000000
##81C439	1.00	2.12	9.89	9.89
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.89	21.00	1.00	1.00
##000000	9.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB522

Deuteranopia (green-blind)

#C3B046

Tritanopia (blue-blind)

#83BCA9

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #81c439;
/* rgb */ color: rgb(129, 196, 57);
/* oklch */ color: oklch(74.9% 0.181 131.9);

Tailwind

colors: {
  custom: {
    50: '#aad678',
    500: '#81c439',
    950: '#000000',
  },
}

SCSS

$custom: #81c439;
$custom-light: #aad678;
$custom-dark: #000000;

JSON

{
  "hex": "#81c439",
  "rgb": {
    "r": 129,
    "g": 196,
    "b": 57
  },
  "hsl": {
    "h": 88.921,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.74866,
    "c": 0.18111,
    "h": 131.9
  },
  "luminance": 0.44442
}

Semantic roles & 50–950 ramp

primary

#81C439

secondary

#AB8DCC

accent

#4ADE91

background

#FAFDF7

surface

#F5FAEE

border

#CFD3C9

text

#101409

muted

#7F837B

Preview Lab

Preview with #81C439

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

Preview Lab → · Contrast checker → · Palette generator →