#81CB40#81CB40

#81CB40 is a light, vivid yellow-green. Relative luminance 0.477; OKLCH L 76.6% C 0.185 H 133.3°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#81CB40
RGB	rgb(129, 203, 64)
HSL	hsl(92, 57%, 52%)
HSV	hsv(92, 68%, 80%)
CMYK	cmyk(36.5%, 0%, 68.5%, 20.4%)
CIE-LAB	lab(74.67, -45.39, 59.34)
CIE-LCH	lch(74.67, 74.71, 127.42°)
OKLab	oklab(76.63% -0.1272 0.1348)
OKLCH	oklch(76.63% 0.185 133.3)
XYZ	xyz(31.3341, 47.7478, 12.4148)
Luminance	0.4775 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CB40 #8A40CB

analogous

#C7CB40 #81CB40 #40CB44

triadic

#81CB40 #4081CB #CB4081

tetradic

#81CB40 #40C7CB #8A40CB #CB4440

square

#81CB40 #40C7CB #8A40CB #CB4440

split-complementary

#81CB40 #4440CB #CB40C7

monochromatic

#46721F #63A22C #81CB40 #A1D870 #C0E5A0

Accessibility & contrast

On white

1.99

#81CB40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.55

#81CB40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CB40

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CB40	#FFFFFF	#000000	##000000
##81CB40	1.00	1.99	10.55	10.55
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.55	21.00	1.00	1.00
##000000	10.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BB2B

Deuteranopia (green-blind)

#C9B64C

Tritanopia (blue-blind)

#81C3AF

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #81cb40;
/* rgb */ color: rgb(129, 203, 64);
/* oklch */ color: oklch(76.6% 0.185 133.3);

Tailwind

colors: {
  custom: {
    50: '#abdb7c',
    500: '#81cb40',
    950: '#000000',
  },
}

SCSS

$custom: #81cb40;
$custom-light: #abdb7c;
$custom-dark: #000000;

JSON

{
  "hex": "#81cb40",
  "rgb": {
    "r": 129,
    "g": 203,
    "b": 64
  },
  "hsl": {
    "h": 91.942,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.7663,
    "c": 0.18535,
    "h": 133.3
  },
  "luminance": 0.47749
}

Semantic roles & 50–950 ramp

primary

#81CB40

secondary

#B595D2

accent

#47E099

background

#FAFDF7

surface

#F5FBEE

border

#CFD4C9

text

#11150A

muted

#80837C

Preview Lab

Preview with #81CB40

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

Preview Lab → · Contrast checker → · Palette generator →