#81B73B#81B73B

#81B73B is a light, vivid yellow-green. Relative luminance 0.389; OKLCH L 71.7% C 0.163 H 130.0°. Best body text is #000000 at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#81B73B
RGB	rgb(129, 183, 59)
HSL	hsl(86, 51%, 47%)
HSV	hsv(86, 68%, 72%)
CMYK	cmyk(29.5%, 0%, 67.8%, 28.2%)
CIE-LAB	lab(68.64, -37.06, 55.03)
CIE-LCH	lch(68.64, 66.35, 123.96°)
OKLab	oklab(71.71% -0.1049 0.1251)
OKLCH	oklch(71.71% 0.163 130)
XYZ	xyz(26.7760, 38.8491, 10.2247)
Luminance	0.3885 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B73B #713BB7

analogous

#B7AF3B #81B73B #43B73B

triadic

#81B73B #3B81B7 #B73B81

tetradic

#81B73B #3BB7AF #713BB7 #B73B43

square

#81B73B #3BB7AF #713BB7 #B73B43

split-complementary

#81B73B #3B43B7 #AF3BB7

monochromatic

#405A1D #60892C #81B73B #9ECD63 #BBDC91

Accessibility & contrast

On white

2.39

#81B73B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.77

#81B73B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B73B

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B73B	#FFFFFF	#000000	##000000
##81B73B	1.00	2.39	8.77	8.77
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.77	21.00	1.00	1.00
##000000	8.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAA29

Deuteranopia (green-blind)

#B8A645

Tritanopia (blue-blind)

#84AF9E

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #81b73b;
/* rgb */ color: rgb(129, 183, 59);
/* oklch */ color: oklch(71.7% 0.163 130.0);

Tailwind

colors: {
  custom: {
    50: '#a9cd78',
    500: '#81b73b',
    950: '#000000',
  },
}

SCSS

$custom: #81b73b;
$custom-light: #a9cd78;
$custom-dark: #000000;

JSON

{
  "hex": "#81b73b",
  "rgb": {
    "r": 129,
    "g": 183,
    "b": 59
  },
  "hsl": {
    "h": 86.129,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.71711,
    "c": 0.16323,
    "h": 130
  },
  "luminance": 0.3885
}

Semantic roles & 50–950 ramp

primary

#81B73B

secondary

#A387C6

accent

#4DDB8B

background

#FAFCF7

surface

#F4F9EE

border

#CED2C9

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B73B

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

Preview Lab → · Contrast checker → · Palette generator →