#81BF37#81BF37

#81BF37 is a light, vivid yellow-green. Relative luminance 0.422; OKLCH L 73.6% C 0.176 H 131.0°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#81BF37
RGB	rgb(129, 191, 55)
HSL	hsl(87, 55%, 48%)
HSV	hsv(87, 71%, 75%)
CMYK	cmyk(32.5%, 0%, 71.2%, 25.1%)
CIE-LAB	lab(71.01, -40.88, 58.99)
CIE-LCH	lch(71.01, 71.78, 124.72°)
OKLab	oklab(73.63% -0.1156 0.1328)
OKLCH	oklch(73.63% 0.176 131)
XYZ	xyz(28.3734, 42.2036, 10.2649)
Luminance	0.4220 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BF37 #7537BF

analogous

#BFB937 #81BF37 #3DBF37

triadic

#81BF37 #3781BF #BF3781

tetradic

#81BF37 #37BFB9 #7537BF #BF373D

square

#81BF37 #37BFB9 #7537BF #BF373D

split-complementary

#81BF37 #373DBF #B937BF

monochromatic

#41601C #618F29 #81BF37 #9FD262 #BCDF91

Accessibility & contrast

On white

2.22

#81BF37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.44

#81BF37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BF37

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BF37	#FFFFFF	#000000	##000000
##81BF37	1.00	2.22	9.44	9.44
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.44	21.00	1.00	1.00
##000000	9.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B120

Deuteranopia (green-blind)

#BFAC43

Tritanopia (blue-blind)

#83B7A4

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #81bf37;
/* rgb */ color: rgb(129, 191, 55);
/* oklch */ color: oklch(73.6% 0.176 131.0);

Tailwind

colors: {
  custom: {
    50: '#aad276',
    500: '#81bf37',
    950: '#000000',
  },
}

SCSS

$custom: #81bf37;
$custom-light: #aad276;
$custom-dark: #000000;

JSON

{
  "hex": "#81bf37",
  "rgb": {
    "r": 129,
    "g": 191,
    "b": 55
  },
  "hsl": {
    "h": 87.353,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.7363,
    "c": 0.17611,
    "h": 131
  },
  "luminance": 0.42205
}

Semantic roles & 50–950 ramp

primary

#81BF37

secondary

#A688CA

accent

#49DF8D

background

#FAFCF7

surface

#F4F9ED

border

#CED2C8

text

#101409

muted

#7F827B

Preview Lab

Preview with #81BF37

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

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