#81B534#81B534

#81B534 is a light, vivid yellow-green. Relative luminance 0.380; OKLCH L 71.2% C 0.165 H 129.1°. Best body text is #000000 at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#81B534
RGB	rgb(129, 181, 52)
HSL	hsl(84, 55%, 46%)
HSV	hsv(84, 71%, 71%)
CMYK	cmyk(28.7%, 0%, 71.3%, 29%)
CIE-LAB	lab(67.99, -36.65, 57.07)
CIE-LCH	lch(67.99, 67.82, 122.71°)
OKLab	oklab(71.17% -0.1043 0.1283)
OKLCH	oklch(71.17% 0.165 129.1)
XYZ	xyz(26.1969, 37.9621, 9.1953)
Luminance	0.3796 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B534 #6834B5

analogous

#B5A834 #81B534 #40B534

triadic

#81B534 #3481B5 #B53481

tetradic

#81B534 #34B5A8 #6834B5 #B53440

square

#81B534 #34B5A8 #6834B5 #B53440

split-complementary

#81B534 #3440B5 #A834B5

monochromatic

#3D5619 #5F8526 #81B534 #9FCF57 #BADC87

Accessibility & contrast

On white

2.44

#81B534 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.59

#81B534 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B534

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B534	#FFFFFF	#000000	##000000
##81B534	1.00	2.44	8.59	8.59
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.59	21.00	1.00	1.00
##000000	8.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA81E

Deuteranopia (green-blind)

#B6A540

Tritanopia (blue-blind)

#85AD9C

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #81b534;
/* rgb */ color: rgb(129, 181, 52);
/* oklch */ color: oklch(71.2% 0.165 129.1);

Tailwind

colors: {
  custom: {
    50: '#aacb74',
    500: '#81b534',
    950: '#000000',
  },
}

SCSS

$custom: #81b534;
$custom-light: #aacb74;
$custom-dark: #000000;

JSON

{
  "hex": "#81b534",
  "rgb": {
    "r": 129,
    "g": 181,
    "b": 52
  },
  "hsl": {
    "h": 84.186,
    "s": 55.365,
    "l": 45.686
  },
  "oklch": {
    "l": 0.71167,
    "c": 0.1654,
    "h": 129.1
  },
  "luminance": 0.37963
}

Semantic roles & 50–950 ramp

primary

#81B534

secondary

#9B7FC6

accent

#49DF85

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B534

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

Preview Lab → · Contrast checker → · Palette generator →