#81C337#81C337

#81C337 is a light, vivid yellow-green. Relative luminance 0.440; OKLCH L 74.6% C 0.181 H 131.6°. Best body text is #000000 at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#81C337
RGB	rgb(129, 195, 55)
HSL	hsl(88, 56%, 49%)
HSV	hsv(88, 72%, 76%)
CMYK	cmyk(33.8%, 0%, 71.8%, 23.5%)
CIE-LAB	lab(72.21, -42.61, 60.20)
CIE-LCH	lch(72.21, 73.75, 125.29°)
OKLab	oklab(74.61% -0.1203 0.1353)
OKLCH	oklch(74.61% 0.181 131.6)
XYZ	xyz(29.2577, 43.9721, 10.5596)
Luminance	0.4397 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C337 #7937C3

analogous

#C3BF37 #81C337 #3BC337

triadic

#81C337 #3781C3 #C33781

tetradic

#81C337 #37C3BF #7937C3 #C3373B

square

#81C337 #37C3BF #7937C3 #C3373B

split-complementary

#81C337 #373BC3 #BF37C3

monochromatic

#42641C #61932A #81C337 #9FD364 #BCE194

Accessibility & contrast

On white

2.14

#81C337 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.79

#81C337 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C337

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C337	#FFFFFF	#000000	##000000
##81C337	1.00	2.14	9.79	9.79
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.79	21.00	1.00	1.00
##000000	9.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB41E

Deuteranopia (green-blind)

#C2AF44

Tritanopia (blue-blind)

#83BBA8

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #81c337;
/* rgb */ color: rgb(129, 195, 55);
/* oklch */ color: oklch(74.6% 0.181 131.6);

Tailwind

colors: {
  custom: {
    50: '#aad577',
    500: '#81c337',
    950: '#000000',
  },
}

SCSS

$custom: #81c337;
$custom-light: #aad577;
$custom-dark: #000000;

JSON

{
  "hex": "#81c337",
  "rgb": {
    "r": 129,
    "g": 195,
    "b": 55
  },
  "hsl": {
    "h": 88.286,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.74607,
    "c": 0.1811,
    "h": 131.6
  },
  "luminance": 0.43973
}

Semantic roles & 50–950 ramp

primary

#81C337

secondary

#A98ACC

accent

#49DF90

background

#FAFDF7

surface

#F5FAEE

border

#CFD3C9

text

#101409

muted

#7F837B

Preview Lab

Preview with #81C337

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

Preview Lab → · Contrast checker → · Palette generator →