#81CC40#81CC40

#81CC40 is a light, vivid yellow-green. Relative luminance 0.482; OKLCH L 76.9% C 0.187 H 133.5°. Best body text is #000000 at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#81CC40
RGB	rgb(129, 204, 64)
HSL	hsl(92, 58%, 53%)
HSV	hsv(92, 69%, 80%)
CMYK	cmyk(36.8%, 0%, 68.6%, 20%)
CIE-LAB	lab(74.96, -45.81, 59.65)
CIE-LCH	lch(74.96, 75.21, 127.53°)
OKLab	oklab(76.87% -0.1284 0.1354)
OKLCH	oklch(76.87% 0.187 133.5)
XYZ	xyz(31.5710, 48.2216, 12.4937)
Luminance	0.4822 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CC40 #8B40CC

analogous

#C7CC40 #81CC40 #40CC45

triadic

#81CC40 #4081CC #CC4081

tetradic

#81CC40 #40C7CC #8B40CC #CC4540

square

#81CC40 #40C7CC #8B40CC #CC4540

split-complementary

#81CC40 #4540CC #CC40C7

monochromatic

#46731F #63A32C #81CC40 #A1D970 #C1E6A1

Accessibility & contrast

On white

1.97

#81CC40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.64

#81CC40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CC40

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CC40	#FFFFFF	#000000	##000000
##81CC40	1.00	1.97	10.64	10.64
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.64	21.00	1.00	1.00
##000000	10.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC2B

Deuteranopia (green-blind)

#CAB64C

Tritanopia (blue-blind)

#81C4B0

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #81cc40;
/* rgb */ color: rgb(129, 204, 64);
/* oklch */ color: oklch(76.9% 0.187 133.5);

Tailwind

colors: {
  custom: {
    50: '#abdc7c',
    500: '#81cc40',
    950: '#000000',
  },
}

SCSS

$custom: #81cc40;
$custom-light: #abdc7c;
$custom-dark: #000000;

JSON

{
  "hex": "#81cc40",
  "rgb": {
    "r": 129,
    "g": 204,
    "b": 64
  },
  "hsl": {
    "h": 92.143,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.76874,
    "c": 0.18662,
    "h": 133.5
  },
  "luminance": 0.48223
}

Semantic roles & 50–950 ramp

primary

#81CC40

secondary

#B695D2

accent

#47E199

background

#FAFDF7

surface

#F5FBEE

border

#CFD4C9

text

#11150A

muted

#80837C

Preview Lab

Preview with #81CC40

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

Preview Lab → · Contrast checker → · Palette generator →