#81B133#81B133

#81B133 is a light, vivid yellow-green. Relative luminance 0.363; OKLCH L 70.2% C 0.161 H 128.2°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#81B133
RGB	rgb(129, 177, 51)
HSL	hsl(83, 55%, 45%)
HSV	hsv(83, 71%, 69%)
CMYK	cmyk(27.1%, 0%, 71.2%, 30.6%)
CIE-LAB	lab(66.79, -34.89, 56.23)
CIE-LCH	lch(66.79, 66.18, 121.82°)
OKLab	oklab(70.19% -0.0996 0.1264)
OKLCH	oklch(70.19% 0.161 128.2)
XYZ	xyz(25.3729, 36.3498, 8.8108)
Luminance	0.3635 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B133 #6333B1

analogous

#B1A233 #81B133 #42B133

triadic

#81B133 #3381B1 #B13381

tetradic

#81B133 #33B1A2 #6333B1 #B13342

square

#81B133 #33B1A2 #6333B1 #B13342

split-complementary

#81B133 #3342B1 #A233B1

monochromatic

#3C5218 #5E8125 #81B133 #9FCE54 #BADB83

Accessibility & contrast

On white

2.54

#81B133 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#81B133 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B133

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B133	#FFFFFF	#000000	##000000
##81B133	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)

#BAA51E

Deuteranopia (green-blind)

#B3A13E

Tritanopia (blue-blind)

#85A998

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #81b133;
/* rgb */ color: rgb(129, 177, 51);
/* oklch */ color: oklch(70.2% 0.161 128.2);

Tailwind

colors: {
  custom: {
    50: '#a9c873',
    500: '#81b133',
    950: '#000000',
  },
}

SCSS

$custom: #81b133;
$custom-light: #a9c873;
$custom-dark: #000000;

JSON

{
  "hex": "#81b133",
  "rgb": {
    "r": 129,
    "g": 177,
    "b": 51
  },
  "hsl": {
    "h": 82.857,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.70185,
    "c": 0.16097,
    "h": 128.2
  },
  "luminance": 0.3635
}

Semantic roles & 50–950 ramp

primary

#81B133

secondary

#977BC5

accent

#49DF82

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B133

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

Preview Lab → · Contrast checker → · Palette generator →