#81B136#81B136

#81B136 is a light, vivid yellow-green. Relative luminance 0.364; OKLCH L 70.2% C 0.159 H 128.4°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#81B136
RGB	rgb(129, 177, 54)
HSL	hsl(83, 53%, 45%)
HSV	hsv(83, 69%, 69%)
CMYK	cmyk(27.1%, 0%, 69.5%, 30.6%)
CIE-LAB	lab(66.81, -34.69, 55.10)
CIE-LCH	lch(66.81, 65.12, 122.20°)
OKLab	oklab(70.21% -0.0988 0.1245)
OKLCH	oklch(70.21% 0.159 128.4)
XYZ	xyz(25.4412, 36.3772, 9.1704)
Luminance	0.3638 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B136 #6636B1

analogous

#B1A436 #81B136 #43B136

triadic

#81B136 #3681B1 #B13681

tetradic

#81B136 #36B1A4 #6636B1 #B13643

square

#81B136 #36B1A4 #6636B1 #B13643

split-complementary

#81B136 #3643B1 #A436B1

monochromatic

#3D5319 #5F8228 #81B136 #9FCC58 #BADA87

Accessibility & contrast

On white

2.54

#81B136 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#81B136 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B136

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B136	#FFFFFF	#000000	##000000
##81B136	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA523

Deuteranopia (green-blind)

#B3A240

Tritanopia (blue-blind)

#85A998

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #81b136;
/* rgb */ color: rgb(129, 177, 54);
/* oklch */ color: oklch(70.2% 0.159 128.4);

Tailwind

colors: {
  custom: {
    50: '#a9c874',
    500: '#81b136',
    950: '#000000',
  },
}

SCSS

$custom: #81b136;
$custom-light: #a9c874;
$custom-dark: #000000;

JSON

{
  "hex": "#81b136",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 54
  },
  "hsl": {
    "h": 83.415,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.70208,
    "c": 0.15897,
    "h": 128.4
  },
  "luminance": 0.36378
}

Semantic roles & 50–950 ramp

primary

#81B136

secondary

#9A7FC4

accent

#4BDD84

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B136

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

Preview Lab → · Contrast checker → · Palette generator →