#81BF31#81BF31

#81BF31 is a light, vivid yellow-green. Relative luminance 0.421; OKLCH L 73.6% C 0.180 H 130.7°. Best body text is #000000 at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#81BF31
RGB	rgb(129, 191, 49)
HSL	hsl(86, 59%, 47%)
HSV	hsv(86, 74%, 75%)
CMYK	cmyk(32.5%, 0%, 74.3%, 25.1%)
CIE-LAB	lab(70.97, -41.25, 61.08)
CIE-LCH	lch(70.97, 73.71, 124.03°)
OKLab	oklab(73.59% -0.1171 0.1363)
OKLCH	oklch(73.59% 0.18 130.7)
XYZ	xyz(28.2382, 42.1495, 9.5530)
Luminance	0.4215 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BF31 #6F31BF

analogous

#BFB631 #81BF31 #3ABF31

triadic

#81BF31 #3181BF #BF3181

tetradic

#81BF31 #31BFB6 #6F31BF #BF313A

square

#81BF31 #31BFB6 #6F31BF #BF313A

split-complementary

#81BF31 #313ABF #B631BF

monochromatic

#3F5E18 #608E25 #81BF31 #9ED459 #BBE18A

Accessibility & contrast

On white

2.23

#81BF31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.43

#81BF31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BF31

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BF31	#FFFFFF	#000000	##000000
##81BF31	1.00	2.23	9.43	9.43
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.43	21.00	1.00	1.00
##000000	9.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B113

Deuteranopia (green-blind)

#BFAC3F

Tritanopia (blue-blind)

#84B7A4

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #81bf31;
/* rgb */ color: rgb(129, 191, 49);
/* oklch */ color: oklch(73.6% 0.180 130.7);

Tailwind

colors: {
  custom: {
    50: '#aad273',
    500: '#81bf31',
    950: '#000000',
  },
}

SCSS

$custom: #81bf31;
$custom-light: #aad273;
$custom-dark: #000000;

JSON

{
  "hex": "#81bf31",
  "rgb": {
    "r": 129,
    "g": 191,
    "b": 49
  },
  "hsl": {
    "h": 86.197,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.73587,
    "c": 0.1797,
    "h": 130.7
  },
  "luminance": 0.4215
}

Semantic roles & 50–950 ramp

primary

#81BF31

secondary

#A181CB

accent

#45E28A

background

#FAFCF7

surface

#F5F9ED

border

#CFD2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BF31

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

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