#81D133#81D133

#81D133 is a light, highly saturated yellow-green. Relative luminance 0.505; OKLCH L 78.0% C 0.200 H 133.2°. Best body text is #000000 at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#81D133
RGB	rgb(129, 209, 51)
HSL	hsl(90, 63%, 51%)
HSV	hsv(90, 76%, 82%)
CMYK	cmyk(38.3%, 0%, 75.6%, 18%)
CIE-LAB	lab(76.38, -48.72, 65.65)
CIE-LCH	lch(76.38, 81.75, 126.58°)
OKLab	oklab(78% -0.1372 0.1462)
OKLCH	oklch(78% 0.2 133.2)
XYZ	xyz(32.4508, 50.5055, 11.1700)
Luminance	0.5051 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D133 #8333D1

analogous

#D0D133 #81D133 #33D134

triadic

#81D133 #3381D1 #D13381

tetradic

#81D133 #33D0D1 #8333D1 #D13433

square

#81D133 #33D0D1 #8333D1 #D13433

split-complementary

#81D133 #3433D1 #D133D0

monochromatic

#447019 #63A225 #81D133 #A0DC65 #BFE897

Accessibility & contrast

On white

1.89

#81D133 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.10

#81D133 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D133

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D133	#FFFFFF	#000000	##000000
##81D133	1.00	1.89	11.10	11.10
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.10	21.00	1.00	1.00
##000000	11.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC00B

Deuteranopia (green-blind)

#CFBA43

Tritanopia (blue-blind)

#81C9B3

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #81d133;
/* rgb */ color: rgb(129, 209, 51);
/* oklch */ color: oklch(78.0% 0.200 133.2);

Tailwind

colors: {
  custom: {
    50: '#acdf76',
    500: '#81d133',
    950: '#000000',
  },
}

SCSS

$custom: #81d133;
$custom-light: #acdf76;
$custom-dark: #000000;

JSON

{
  "hex": "#81d133",
  "rgb": {
    "r": 129,
    "g": 209,
    "b": 51
  },
  "hsl": {
    "h": 90.38,
    "s": 63.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.78004,
    "c": 0.20045,
    "h": 133.2
  },
  "luminance": 0.50507
}

Semantic roles & 50–950 ramp

primary

#81D133

secondary

#552F79

accent

#42E695

background

#FDFEFB

surface

#F8FCF1

border

#D1D5CB

text

#111509

muted

#81847D

Preview Lab

Preview with #81D133

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

Preview Lab → · Contrast checker → · Palette generator →