#81BB33#81BB33

#81BB33 is a light, vivid yellow-green. Relative luminance 0.404; OKLCH L 72.6% C 0.174 H 130.1°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#81BB33
RGB	rgb(129, 187, 51)
HSL	hsl(86, 57%, 47%)
HSV	hsv(86, 73%, 73%)
CMYK	cmyk(31%, 0%, 72.7%, 26.7%)
CIE-LAB	lab(69.79, -39.38, 59.22)
CIE-LCH	lch(69.79, 71.12, 123.62°)
OKLab	oklab(72.62% -0.1119 0.1327)
OKLCH	oklch(72.62% 0.174 130.1)
XYZ	xyz(27.4210, 40.4459, 9.4934)
Luminance	0.4045 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB33 #6D33BB

analogous

#BBB133 #81BB33 #3DBB33

triadic

#81BB33 #3381BB #BB3381

tetradic

#81BB33 #33BBB1 #6D33BB #BB333D

square

#81BB33 #33BBB1 #6D33BB #BB333D

split-complementary

#81BB33 #333DBB #B133BB

monochromatic

#3F5B19 #608B26 #81BB33 #9ED259 #BADF89

Accessibility & contrast

On white

2.31

#81BB33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#81BB33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB33

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB33	#FFFFFF	#000000	##000000
##81BB33	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD1A

Deuteranopia (green-blind)

#BCA940

Tritanopia (blue-blind)

#84B3A1

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #81bb33;
/* rgb */ color: rgb(129, 187, 51);
/* oklch */ color: oklch(72.6% 0.174 130.1);

Tailwind

colors: {
  custom: {
    50: '#aad074',
    500: '#81bb33',
    950: '#000000',
  },
}

SCSS

$custom: #81bb33;
$custom-light: #aad074;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb33",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 51
  },
  "hsl": {
    "h": 85.588,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.72624,
    "c": 0.17357,
    "h": 130.1
  },
  "luminance": 0.40447
}

Semantic roles & 50–950 ramp

primary

#81BB33

secondary

#A081C9

accent

#47E089

background

#FAFCF7

surface

#F4F9ED

border

#CED2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BB33

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

Preview Lab → · Contrast checker → · Palette generator →