#81BB40#81BB40

#81BB40 is a light, vivid yellow-green. Relative luminance 0.406; OKLCH L 72.7% C 0.165 H 131.1°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#81BB40
RGB	rgb(129, 187, 64)
HSL	hsl(88, 49%, 49%)
HSV	hsv(88, 66%, 73%)
CMYK	cmyk(31%, 0%, 65.8%, 26.7%)
CIE-LAB	lab(69.88, -38.47, 54.30)
CIE-LCH	lch(69.88, 66.55, 125.32°)
OKLab	oklab(72.73% -0.1083 0.1242)
OKLCH	oklch(72.73% 0.165 131.1)
XYZ	xyz(27.7487, 40.5770, 11.2196)
Luminance	0.4058 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB40 #7A40BB

analogous

#BBB840 #81BB40 #43BB40

triadic

#81BB40 #4081BB #BB4081

tetradic

#81BB40 #40BBB8 #7A40BB #BB4043

square

#81BB40 #40BBB8 #7A40BB #BB4043

split-complementary

#81BB40 #4043BB #B840BB

monochromatic

#426021 #628D30 #81BB40 #9FCD6C #BDDC99

Accessibility & contrast

On white

2.30

#81BB40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#81BB40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB40

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB40	#FFFFFF	#000000	##000000
##81BB40	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AE30

Deuteranopia (green-blind)

#BBA94A

Tritanopia (blue-blind)

#83B3A2

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bb40;
/* rgb */ color: rgb(129, 187, 64);
/* oklch */ color: oklch(72.7% 0.165 131.1);

Tailwind

colors: {
  custom: {
    50: '#a9d07b',
    500: '#81bb40',
    950: '#000000',
  },
}

SCSS

$custom: #81bb40;
$custom-light: #a9d07b;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb40",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 64
  },
  "hsl": {
    "h": 88.293,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.72729,
    "c": 0.16481,
    "h": 131.1
  },
  "luminance": 0.40578
}

Semantic roles & 50–950 ramp

primary

#81BB40

secondary

#AA8FC8

accent

#4FD990

background

#FAFCF7

surface

#F4F9EE

border

#CED2C9

text

#10140A

muted

#7F827C

Preview Lab

Preview with #81BB40

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

Preview Lab → · Contrast checker → · Palette generator →