#81B833#81B833

#81B833 is a light, vivid yellow-green. Relative luminance 0.392; OKLCH L 71.9% C 0.170 H 129.6°. Best body text is #000000 at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#81B833
RGB	rgb(129, 184, 51)
HSL	hsl(85, 57%, 46%)
HSV	hsv(85, 72%, 72%)
CMYK	cmyk(29.9%, 0%, 72.3%, 27.8%)
CIE-LAB	lab(68.89, -38.05, 58.33)
CIE-LCH	lch(68.89, 69.64, 123.12°)
OKLab	oklab(71.89% -0.1083 0.1308)
OKLCH	oklch(71.89% 0.17 129.6)
XYZ	xyz(26.7912, 39.1863, 9.2835)
Luminance	0.3919 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B833 #6A33B8

analogous

#B8AC33 #81B833 #3EB833

triadic

#81B833 #3381B8 #B83381

tetradic

#81B833 #33B8AC #6A33B8 #B8333E

square

#81B833 #33B8AC #6A33B8 #B8333E

split-complementary

#81B833 #333EB8 #AC33B8

monochromatic

#3E5818 #5F8826 #81B833 #9FD158 #BADE88

Accessibility & contrast

On white

2.38

#81B833 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.84

#81B833 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B833

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B833	#FFFFFF	#000000	##000000
##81B833	1.00	2.38	8.84	8.84
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.84	21.00	1.00	1.00
##000000	8.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AB1B

Deuteranopia (green-blind)

#B9A73F

Tritanopia (blue-blind)

#85B09E

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #81b833;
/* rgb */ color: rgb(129, 184, 51);
/* oklch */ color: oklch(71.9% 0.170 129.6);

Tailwind

colors: {
  custom: {
    50: '#aacd73',
    500: '#81b833',
    950: '#000000',
  },
}

SCSS

$custom: #81b833;
$custom-light: #aacd73;
$custom-dark: #000000;

JSON

{
  "hex": "#81b833",
  "rgb": {
    "r": 129,
    "g": 184,
    "b": 51
  },
  "hsl": {
    "h": 84.812,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.71891,
    "c": 0.16981,
    "h": 129.6
  },
  "luminance": 0.39187
}

Semantic roles & 50–950 ramp

primary

#81B833

secondary

#9D7FC8

accent

#48E087

background

#FAFCF7

surface

#F4F9ED

border

#CED2C8

text

#101309

muted

#7F827B

Preview Lab

Preview with #81B833

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

Preview Lab → · Contrast checker → · Palette generator →