#81D451#81D451

#81D451 is a light, vivid yellow-green. Relative luminance 0.523; OKLCH L 79.0% C 0.185 H 135.8°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#81D451
RGB	rgb(129, 212, 81)
HSL	hsl(98, 60%, 57%)
HSV	hsv(98, 62%, 83%)
CMYK	cmyk(39.2%, 0%, 61.8%, 16.9%)
CIE-LAB	lab(77.49, -47.75, 55.45)
CIE-LCH	lch(77.49, 73.17, 130.73°)
OKLab	oklab(78.98% -0.1324 0.1286)
OKLCH	oklch(78.98% 0.185 135.8)
XYZ	xyz(34.0811, 52.3464, 16.0911)
Luminance	0.5235 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D451 #A451D4

analogous

#C3D451 #81D451 #51D462

triadic

#81D451 #5181D4 #D45181

tetradic

#81D451 #51C3D4 #A451D4 #D46251

square

#81D451 #51C3D4 #A451D4 #D46251

split-complementary

#81D451 #6251D4 #D451C3

monochromatic

#488922 #61BA2E #81D451 #A5E082 #C8ECB3

Accessibility & contrast

On white

1.83

#81D451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.47

#81D451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D451

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D451	#FFFFFF	#000000	##000000
##81D451	1.00	1.83	11.47	11.47
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.47	21.00	1.00	1.00
##000000	11.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC442

Deuteranopia (green-blind)

#D0BD5B

Tritanopia (blue-blind)

#7ECDB8

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #81d451;
/* rgb */ color: rgb(129, 212, 81);
/* oklch */ color: oklch(79.0% 0.185 135.8);

Tailwind

colors: {
  custom: {
    50: '#abe287',
    500: '#81d451',
    950: '#000000',
  },
}

SCSS

$custom: #81d451;
$custom-light: #abe287;
$custom-dark: #000000;

JSON

{
  "hex": "#81d451",
  "rgb": {
    "r": 129,
    "g": 212,
    "b": 81
  },
  "hsl": {
    "h": 98.015,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.78979,
    "c": 0.18457,
    "h": 135.8
  },
  "luminance": 0.52348
}

Semantic roles & 50–950 ramp

primary

#81D451

secondary

#703A8F

accent

#44E4A9

background

#FDFEFC

surface

#F7FCF3

border

#D0D5CD

text

#10150C

muted

#81847F

Preview Lab

Preview with #81D451

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

Preview Lab → · Contrast checker → · Palette generator →