#81B41F#81B41F

#81B41F is a light, vivid yellow-green. Relative luminance 0.374; OKLCH L 70.8% C 0.175 H 127.9°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#81B41F
RGB	rgb(129, 180, 31)
HSL	hsl(81, 71%, 41%)
HSV	hsv(81, 83%, 71%)
CMYK	cmyk(28.3%, 0%, 82.8%, 29.4%)
CIE-LAB	lab(67.58, -37.27, 63.36)
CIE-LCH	lch(67.58, 73.51, 120.47°)
OKLab	oklab(70.8% -0.1075 0.1383)
OKLCH	oklch(70.8% 0.175 127.9)
XYZ	xyz(25.6219, 37.4080, 7.1666)
Luminance	0.3741 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B41F #521FB4

analogous

#B49D1F #81B41F #37B41F

triadic

#81B41F #1F81B4 #B41F81

tetradic

#81B41F #1FB49D #521FB4 #B41F37

square

#81B41F #1FB49D #521FB4 #B41F37

split-complementary

#81B41F #1F37B4 #9D1FB4

monochromatic

#364C0D #5C8016 #81B41F #A3DC34 #BAE568

Accessibility & contrast

On white

2.48

#81B41F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#81B41F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B41F

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B41F	#FFFFFF	#000000	##000000
##81B41F	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA700

Deuteranopia (green-blind)

#B6A431

Tritanopia (blue-blind)

#86AB99

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #81b41f;
/* rgb */ color: rgb(129, 180, 31);
/* oklch */ color: oklch(70.8% 0.175 127.9);

Tailwind

colors: {
  custom: {
    50: '#aaca6a',
    500: '#81b41f',
    950: '#000000',
  },
}

SCSS

$custom: #81b41f;
$custom-light: #aaca6a;
$custom-dark: #000000;

JSON

{
  "hex": "#81b41f",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 31
  },
  "hsl": {
    "h": 80.537,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.70798,
    "c": 0.17519,
    "h": 127.9
  },
  "luminance": 0.37409
}

Semantic roles & 50–950 ramp

primary

#81B41F

secondary

#8764CB

accent

#3AED78

background

#FAFCF6

surface

#F5F8EC

border

#CFD1C7

text

#111307

muted

#80827A

Preview Lab

Preview with #81B41F

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

Preview Lab → · Contrast checker → · Palette generator →