#81D151#81D151

#81D151 is a light, vivid yellow-green. Relative luminance 0.509; OKLCH L 78.3% C 0.181 H 135.6°. Best body text is #000000 at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#81D151
RGB	rgb(129, 209, 81)
HSL	hsl(98, 58%, 57%)
HSV	hsv(98, 61%, 82%)
CMYK	cmyk(38.3%, 0%, 61.2%, 18%)
CIE-LAB	lab(76.59, -46.50, 54.45)
CIE-LCH	lch(76.59, 71.60, 130.49°)
OKLab	oklab(78.25% -0.129 0.1265)
OKLCH	oklch(78.25% 0.181 135.6)
XYZ	xyz(33.3381, 50.8605, 15.8434)
Luminance	0.5086 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D151 #A151D1

analogous

#C1D151 #81D151 #51D161

triadic

#81D151 #5181D1 #D15181

tetradic

#81D151 #51C1D1 #A151D1 #D16151

square

#81D151 #51C1D1 #A151D1 #D16151

split-complementary

#81D151 #6151D1 #D151C1

monochromatic

#488523 #62B530 #81D151 #A4DE81 #C7EBB2

Accessibility & contrast

On white

1.88

#81D151 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.17

#81D151 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D151

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D151	#FFFFFF	#000000	##000000
##81D151	1.00	1.88	11.17	11.17
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.17	21.00	1.00	1.00
##000000	11.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C142

Deuteranopia (green-blind)

#CDBB5B

Tritanopia (blue-blind)

#7FCAB6

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #81d151;
/* rgb */ color: rgb(129, 209, 81);
/* oklch */ color: oklch(78.3% 0.181 135.6);

Tailwind

colors: {
  custom: {
    50: '#aadf87',
    500: '#81d151',
    950: '#000000',
  },
}

SCSS

$custom: #81d151;
$custom-light: #aadf87;
$custom-dark: #000000;

JSON

{
  "hex": "#81d151",
  "rgb": {
    "r": 129,
    "g": 209,
    "b": 81
  },
  "hsl": {
    "h": 97.5,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.7825,
    "c": 0.18065,
    "h": 135.6
  },
  "luminance": 0.50862
}

Semantic roles & 50–950 ramp

primary

#81D151

secondary

#6D3B8B

accent

#46E1A7

background

#FDFEFC

surface

#F7FCF3

border

#D0D5CD

text

#10150C

muted

#81847F

Preview Lab

Preview with #81D151

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

Preview Lab → · Contrast checker → · Palette generator →