#81B134#81B134

#81B134 is a light, vivid yellow-green. Relative luminance 0.364; OKLCH L 70.2% C 0.160 H 128.3°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#81B134
RGB	rgb(129, 177, 52)
HSL	hsl(83, 55%, 45%)
HSV	hsv(83, 71%, 69%)
CMYK	cmyk(27.1%, 0%, 70.6%, 30.6%)
CIE-LAB	lab(66.79, -34.83, 55.86)
CIE-LCH	lch(66.79, 65.83, 121.94°)
OKLab	oklab(70.19% -0.0994 0.1258)
OKLCH	oklch(70.19% 0.16 128.3)
XYZ	xyz(25.3952, 36.3588, 8.9281)
Luminance	0.3636 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B134 #6434B1

analogous

#B1A334 #81B134 #43B134

triadic

#81B134 #3481B1 #B13481

tetradic

#81B134 #34B1A3 #6434B1 #B13443

square

#81B134 #34B1A3 #6434B1 #B13443

split-complementary

#81B134 #3443B1 #A334B1

monochromatic

#3C5218 #5F8226 #81B134 #9FCD55 #BADB84

Accessibility & contrast

On white

2.54

#81B134 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#81B134 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B134

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B134	#FFFFFF	#000000	##000000
##81B134	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA520

Deuteranopia (green-blind)

#B3A13F

Tritanopia (blue-blind)

#85A998

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #81b134;
/* rgb */ color: rgb(129, 177, 52);
/* oklch */ color: oklch(70.2% 0.160 128.3);

Tailwind

colors: {
  custom: {
    50: '#a9c873',
    500: '#81b134',
    950: '#000000',
  },
}

SCSS

$custom: #81b134;
$custom-light: #a9c873;
$custom-dark: #000000;

JSON

{
  "hex": "#81b134",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 52
  },
  "hsl": {
    "h": 83.04,
    "s": 54.585,
    "l": 44.902
  },
  "oklch": {
    "l": 0.70192,
    "c": 0.16031,
    "h": 128.3
  },
  "luminance": 0.36359
}

Semantic roles & 50–950 ramp

primary

#81B134

secondary

#987CC5

accent

#4ADE83

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B134

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

Preview Lab → · Contrast checker → · Palette generator →