#81B437#81B437

#81B437 is a light, vivid yellow-green. Relative luminance 0.376; OKLCH L 70.9% C 0.162 H 129.1°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#81B437
RGB	rgb(129, 180, 55)
HSL	hsl(84, 53%, 46%)
HSV	hsv(84, 69%, 71%)
CMYK	cmyk(28.3%, 0%, 69.4%, 29.4%)
CIE-LAB	lab(67.71, -35.99, 55.64)
CIE-LCH	lch(67.71, 66.27, 122.90°)
OKLab	oklab(70.95% -0.1023 0.1258)
OKLCH	oklch(70.95% 0.162 129.1)
XYZ	xyz(26.0640, 37.5848, 9.4951)
Luminance	0.3759 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B437 #6A37B4

analogous

#B4A837 #81B437 #42B437

triadic

#81B437 #3781B4 #B43781

tetradic

#81B437 #37B4A8 #6A37B4 #B43742

square

#81B437 #37B4A8 #6A37B4 #B43742

split-complementary

#81B437 #3742B4 #A837B4

monochromatic

#3E561A #5F8529 #81B437 #9FCD5B #BADB8A

Accessibility & contrast

On white

2.47

#81B437 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.52

#81B437 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B437

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B437	#FFFFFF	#000000	##000000
##81B437	1.00	2.47	8.52	8.52
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.52	21.00	1.00	1.00
##000000	8.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA724

Deuteranopia (green-blind)

#B5A442

Tritanopia (blue-blind)

#85AC9B

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #81b437;
/* rgb */ color: rgb(129, 180, 55);
/* oklch */ color: oklch(70.9% 0.162 129.1);

Tailwind

colors: {
  custom: {
    50: '#a9ca75',
    500: '#81b437',
    950: '#000000',
  },
}

SCSS

$custom: #81b437;
$custom-light: #a9ca75;
$custom-dark: #000000;

JSON

{
  "hex": "#81b437",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 55
  },
  "hsl": {
    "h": 84.48,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.70947,
    "c": 0.16214,
    "h": 129.1
  },
  "luminance": 0.37585
}

Semantic roles & 50–950 ramp

primary

#81B437

secondary

#9D81C6

accent

#4BDD87

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B437

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

Preview Lab → · Contrast checker → · Palette generator →