#81B333#81B333

#81B333 is a light, vivid yellow-green. Relative luminance 0.371; OKLCH L 70.7% C 0.164 H 128.7°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#81B333
RGB	rgb(129, 179, 51)
HSL	hsl(83, 56%, 45%)
HSV	hsv(83, 72%, 70%)
CMYK	cmyk(27.9%, 0%, 71.5%, 29.8%)
CIE-LAB	lab(67.39, -35.80, 56.83)
CIE-LCH	lch(67.39, 67.17, 122.21°)
OKLab	oklab(70.67% -0.1021 0.1277)
OKLCH	oklch(70.67% 0.164 128.7)
XYZ	xyz(25.7709, 37.1457, 8.9434)
Luminance	0.3715 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B333 #6533B3

analogous

#B3A533 #81B333 #41B333

triadic

#81B333 #3381B3 #B33381

tetradic

#81B333 #33B3A5 #6533B3 #B33341

square

#81B333 #33B3A5 #6533B3 #B33341

split-complementary

#81B333 #3341B3 #A533B3

monochromatic

#3C5418 #5F8325 #81B333 #9FCE55 #BADC84

Accessibility & contrast

On white

2.49

#81B333 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#81B333 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B333

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B333	#FFFFFF	#000000	##000000
##81B333	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA61D

Deuteranopia (green-blind)

#B5A33E

Tritanopia (blue-blind)

#85AB9A

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #81b333;
/* rgb */ color: rgb(129, 179, 51);
/* oklch */ color: oklch(70.7% 0.164 128.7);

Tailwind

colors: {
  custom: {
    50: '#a9ca73',
    500: '#81b333',
    950: '#000000',
  },
}

SCSS

$custom: #81b333;
$custom-light: #a9ca73;
$custom-dark: #000000;

JSON

{
  "hex": "#81b333",
  "rgb": {
    "r": 129,
    "g": 179,
    "b": 51
  },
  "hsl": {
    "h": 83.438,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.70672,
    "c": 0.1635,
    "h": 128.7
  },
  "luminance": 0.37146
}

Semantic roles & 50–950 ramp

primary

#81B333

secondary

#997CC6

accent

#49DF83

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B333

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

Preview Lab → · Contrast checker → · Palette generator →