#81D640#81D640

#81D640 is a light, vivid yellow-green. Relative luminance 0.531; OKLCH L 79.3% C 0.199 H 134.5°. Best body text is #000000 at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#81D640
RGB	rgb(129, 214, 64)
HSL	hsl(94, 65%, 55%)
HSV	hsv(94, 70%, 84%)
CMYK	cmyk(39.7%, 0%, 70.1%, 16.1%)
CIE-LAB	lab(77.95, -49.94, 62.72)
CIE-LCH	lch(77.95, 80.17, 128.53°)
OKLab	oklab(79.32% -0.1396 0.1419)
OKLCH	oklch(79.32% 0.199 134.5)
XYZ	xyz(34.0246, 53.1287, 13.3116)
Luminance	0.5313 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D640 #9540D6

analogous

#CCD640 #81D640 #40D64A

triadic

#81D640 #4081D6 #D64081

tetradic

#81D640 #40CCD6 #9540D6 #D64A40

square

#81D640 #40CCD6 #9540D6 #D64A40

split-complementary

#81D640 #4A40D6 #D640CC

monochromatic

#47801B #63B226 #81D640 #A2E172 #C3ECA5

Accessibility & contrast

On white

1.81

#81D640 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.63

#81D640 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D640

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D640	#FFFFFF	#000000	##000000
##81D640	1.00	1.81	11.63	11.63
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.63	21.00	1.00	1.00
##000000	11.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC527

Deuteranopia (green-blind)

#D2BE4E

Tritanopia (blue-blind)

#80CEB8

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #81d640;
/* rgb */ color: rgb(129, 214, 64);
/* oklch */ color: oklch(79.3% 0.199 134.5);

Tailwind

colors: {
  custom: {
    50: '#ace37d',
    500: '#81d640',
    950: '#000000',
  },
}

SCSS

$custom: #81d640;
$custom-light: #ace37d;
$custom-dark: #000000;

JSON

{
  "hex": "#81d640",
  "rgb": {
    "r": 129,
    "g": 214,
    "b": 64
  },
  "hsl": {
    "h": 94,
    "s": 64.655,
    "l": 54.51
  },
  "oklch": {
    "l": 0.79315,
    "c": 0.19903,
    "h": 134.5
  },
  "luminance": 0.5313
}

Semantic roles & 50–950 ramp

primary

#81D640

secondary

#633387

accent

#40E89F

background

#FDFEFB

surface

#F8FCF2

border

#D1D5CC

text

#11150A

muted

#81847D

Preview Lab

Preview with #81D640

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

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