#81BE31#81BE31

#81BE31 is a light, vivid yellow-green. Relative luminance 0.417; OKLCH L 73.3% C 0.178 H 130.5°. Best body text is #000000 at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#81BE31
RGB	rgb(129, 190, 49)
HSL	hsl(86, 59%, 47%)
HSV	hsv(86, 74%, 75%)
CMYK	cmyk(32.1%, 0%, 74.2%, 25.5%)
CIE-LAB	lab(70.67, -40.82, 60.79)
CIE-LCH	lch(70.67, 73.23, 123.88°)
OKLab	oklab(73.34% -0.1159 0.1357)
OKLCH	oklch(73.34% 0.178 130.5)
XYZ	xyz(28.0209, 41.7149, 9.4805)
Luminance	0.4172 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BE31 #6E31BE

analogous

#BEB531 #81BE31 #3BBE31

triadic

#81BE31 #3181BE #BE3181

tetradic

#81BE31 #31BEB5 #6E31BE #BE313B

square

#81BE31 #31BEB5 #6E31BE #BE313B

split-complementary

#81BE31 #313BBE #B531BE

monochromatic

#3F5D18 #608D24 #81BE31 #9ED458 #BBE189

Accessibility & contrast

On white

2.25

#81BE31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.34

#81BE31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BE31

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BE31	#FFFFFF	#000000	##000000
##81BE31	1.00	2.25	9.34	9.34
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.34	21.00	1.00	1.00
##000000	9.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B013

Deuteranopia (green-blind)

#BEAB3F

Tritanopia (blue-blind)

#84B6A3

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #81be31;
/* rgb */ color: rgb(129, 190, 49);
/* oklch */ color: oklch(73.3% 0.178 130.5);

Tailwind

colors: {
  custom: {
    50: '#aad273',
    500: '#81be31',
    950: '#000000',
  },
}

SCSS

$custom: #81be31;
$custom-light: #aad273;
$custom-dark: #000000;

JSON

{
  "hex": "#81be31",
  "rgb": {
    "r": 129,
    "g": 190,
    "b": 49
  },
  "hsl": {
    "h": 85.957,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.73343,
    "c": 0.17847,
    "h": 130.5
  },
  "luminance": 0.41716
}

Semantic roles & 50–950 ramp

primary

#81BE31

secondary

#A080CA

accent

#46E289

background

#FAFCF7

surface

#F5F9ED

border

#CFD2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BE31

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

Preview Lab → · Contrast checker → · Palette generator →