#81B41B#81B41B

#81B41B is a light, vivid yellow-green. Relative luminance 0.374; OKLCH L 70.8% C 0.177 H 127.7°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#81B41B
RGB	rgb(129, 180, 27)
HSL	hsl(80, 74%, 41%)
HSV	hsv(80, 85%, 71%)
CMYK	cmyk(28.3%, 0%, 85%, 29.4%)
CIE-LAB	lab(67.57, -37.42, 64.32)
CIE-LCH	lch(67.57, 74.41, 120.19°)
OKLab	oklab(70.78% -0.1082 0.1397)
OKLCH	oklch(70.78% 0.177 127.7)
XYZ	xyz(25.5724, 37.3882, 6.9060)
Luminance	0.3739 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B41B #4E1BB4

analogous

#B49A1B #81B41B #34B41B

triadic

#81B41B #1B81B4 #B41B81

tetradic

#81B41B #1BB49A #4E1BB4 #B41B34

square

#81B41B #1BB49A #4E1BB4 #B41B34

split-complementary

#81B41B #1B34B4 #9A1BB4

monochromatic

#354A0B #5B7F13 #81B41B #A4DF2D #BBE762

Accessibility & contrast

On white

2.48

#81B41B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#81B41B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B41B

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B41B	#FFFFFF	#000000	##000000
##81B41B	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)

#B7A42E

Tritanopia (blue-blind)

#86AB99

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #81b41b;
/* rgb */ color: rgb(129, 180, 27);
/* oklch */ color: oklch(70.8% 0.177 127.7);

Tailwind

colors: {
  custom: {
    50: '#aaca69',
    500: '#81b41b',
    950: '#000000',
  },
}

SCSS

$custom: #81b41b;
$custom-light: #aaca69;
$custom-dark: #000000;

JSON

{
  "hex": "#81b41b",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 27
  },
  "hsl": {
    "h": 80,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.70781,
    "c": 0.17671,
    "h": 127.7
  },
  "luminance": 0.37389
}

Semantic roles & 50–950 ramp

primary

#81B41B

secondary

#835FCC

accent

#37F175

background

#FAFCF6

surface

#F5F8EC

border

#CFD1C7

text

#111307

muted

#80827A

Preview Lab

Preview with #81B41B

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

Preview Lab → · Contrast checker → · Palette generator →