#81B131#81B131

#81B131 is a light, vivid yellow-green. Relative luminance 0.363; OKLCH L 70.2% C 0.162 H 128.1°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#81B131
RGB	rgb(129, 177, 49)
HSL	hsl(83, 57%, 44%)
HSV	hsv(83, 72%, 69%)
CMYK	cmyk(27.1%, 0%, 72.3%, 30.6%)
CIE-LAB	lab(66.77, -35.02, 56.96)
CIE-LCH	lch(66.77, 66.86, 121.59°)
OKLab	oklab(70.17% -0.1001 0.1277)
OKLCH	oklch(70.17% 0.162 128.1)
XYZ	xyz(25.3298, 36.3326, 8.5835)
Luminance	0.3633 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B131 #6131B1

analogous

#B1A131 #81B131 #41B131

triadic

#81B131 #3181B1 #B13181

tetradic

#81B131 #31B1A1 #6131B1 #B13141

square

#81B131 #31B1A1 #6131B1 #B13141

split-complementary

#81B131 #3141B1 #A131B1

monochromatic

#3B5116 #5E8124 #81B131 #9FCF51 #BADC80

Accessibility & contrast

On white

2.54

#81B131 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#81B131 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B131

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B131	#FFFFFF	#000000	##000000
##81B131	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)

#BAA51A

Deuteranopia (green-blind)

#B3A13D

Tritanopia (blue-blind)

#85A998

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #81b131;
/* rgb */ color: rgb(129, 177, 49);
/* oklch */ color: oklch(70.2% 0.162 128.1);

Tailwind

colors: {
  custom: {
    50: '#a9c872',
    500: '#81b131',
    950: '#000000',
  },
}

SCSS

$custom: #81b131;
$custom-light: #a9c872;
$custom-dark: #000000;

JSON

{
  "hex": "#81b131",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 49
  },
  "hsl": {
    "h": 82.5,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.7017,
    "c": 0.16224,
    "h": 128.1
  },
  "luminance": 0.36333
}

Semantic roles & 50–950 ramp

primary

#81B131

secondary

#9579C5

accent

#48E081

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B131

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

Preview Lab → · Contrast checker → · Palette generator →