#81BC21#81BC21

#81BC21 is a light, vivid yellow-green. Relative luminance 0.407; OKLCH L 72.8% C 0.184 H 129.4°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#81BC21
RGB	rgb(129, 188, 33)
HSL	hsl(83, 70%, 43%)
HSV	hsv(83, 82%, 74%)
CMYK	cmyk(31.4%, 0%, 82.4%, 26.3%)
CIE-LAB	lab(70.00, -40.73, 64.98)
CIE-LCH	lch(70.00, 76.69, 122.08°)
OKLab	oklab(72.77% -0.1167 0.142)
OKLCH	oklch(72.77% 0.184 129.4)
XYZ	xyz(27.3109, 40.7425, 7.8637)
Luminance	0.4074 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BC21 #5C21BC

analogous

#BCA921 #81BC21 #33BC21

triadic

#81BC21 #2181BC #BC2181

tetradic

#81BC21 #21BCA9 #5C21BC #BC2133

square

#81BC21 #21BCA9 #5C21BC #BC2133

split-complementary

#81BC21 #2133BC #A921BC

monochromatic

#3A540F #5D8818 #81BC21 #A0DD3D #BAE671

Accessibility & contrast

On white

2.30

#81BC21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#81BC21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BC21

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BC21	#FFFFFF	#000000	##000000
##81BC21	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AE00

Deuteranopia (green-blind)

#BDAA34

Tritanopia (blue-blind)

#85B3A0

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bc21;
/* rgb */ color: rgb(129, 188, 33);
/* oklch */ color: oklch(72.8% 0.184 129.4);

Tailwind

colors: {
  custom: {
    50: '#abd06c',
    500: '#81bc21',
    950: '#000000',
  },
}

SCSS

$custom: #81bc21;
$custom-light: #abd06c;
$custom-dark: #000000;

JSON

{
  "hex": "#81bc21",
  "rgb": {
    "r": 129,
    "g": 188,
    "b": 33
  },
  "hsl": {
    "h": 82.839,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.72765,
    "c": 0.18386,
    "h": 129.4
  },
  "luminance": 0.40743
}

Semantic roles & 50–950 ramp

primary

#81BC21

secondary

#916CCD

accent

#3BED7F

background

#FBFCF6

surface

#F6F9EC

border

#D0D2C7

text

#111408

muted

#80827A

Preview Lab

Preview with #81BC21

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

Preview Lab → · Contrast checker → · Palette generator →