#81D138#81D138

#81D138 is a light, vivid yellow-green. Relative luminance 0.506; OKLCH L 78.0% C 0.198 H 133.5°. Best body text is #000000 at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#81D138
RGB	rgb(129, 209, 56)
HSL	hsl(91, 62%, 52%)
HSV	hsv(91, 73%, 82%)
CMYK	cmyk(38.3%, 0%, 73.2%, 18%)
CIE-LAB	lab(76.41, -48.43, 64.02)
CIE-LCH	lch(76.41, 80.27, 127.11°)
OKLab	oklab(78.04% -0.136 0.1435)
OKLCH	oklch(78.04% 0.198 133.5)
XYZ	xyz(32.5670, 50.5520, 11.7822)
Luminance	0.5055 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D138 #8838D1

analogous

#CDD138 #81D138 #38D13C

triadic

#81D138 #3881D1 #D13881

tetradic

#81D138 #38CDD1 #8838D1 #D13C38

square

#81D138 #38CDD1 #8838D1 #D13C38

split-complementary

#81D138 #3C38D1 #D138CD

monochromatic

#45741B #63A626 #81D138 #A0DC6A #C0E89B

Accessibility & contrast

On white

1.89

#81D138 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.11

#81D138 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D138

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D138	#FFFFFF	#000000	##000000
##81D138	1.00	1.89	11.11	11.11
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.11	21.00	1.00	1.00
##000000	11.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C11A

Deuteranopia (green-blind)

#CEBA47

Tritanopia (blue-blind)

#81C9B4

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #81d138;
/* rgb */ color: rgb(129, 209, 56);
/* oklch */ color: oklch(78.0% 0.198 133.5);

Tailwind

colors: {
  custom: {
    50: '#abdf79',
    500: '#81d138',
    950: '#000000',
  },
}

SCSS

$custom: #81d138;
$custom-light: #abdf79;
$custom-dark: #000000;

JSON

{
  "hex": "#81d138",
  "rgb": {
    "r": 129,
    "g": 209,
    "b": 56
  },
  "hsl": {
    "h": 91.373,
    "s": 62.449,
    "l": 51.961
  },
  "oklch": {
    "l": 0.78036,
    "c": 0.19772,
    "h": 133.5
  },
  "luminance": 0.50554
}

Semantic roles & 50–950 ramp

primary

#81D138

secondary

#58317C

accent

#42E698

background

#FDFEFB

surface

#F8FCF2

border

#D1D5CC

text

#11150A

muted

#81847D

Preview Lab

Preview with #81D138

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

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