#81D840#81D840

#81D840 is a light, highly saturated yellow-green. Relative luminance 0.541; OKLCH L 79.8% C 0.201 H 134.7°. Best body text is #000000 at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#81D840
RGB	rgb(129, 216, 64)
HSL	hsl(94, 66%, 55%)
HSV	hsv(94, 70%, 85%)
CMYK	cmyk(40.3%, 0%, 70.4%, 15.3%)
CIE-LAB	lab(78.55, -50.75, 63.33)
CIE-LCH	lch(78.55, 81.15, 128.71°)
OKLab	oklab(79.8% -0.1418 0.1432)
OKLCH	oklch(79.8% 0.201 134.7)
XYZ	xyz(34.5338, 54.1472, 13.4813)
Luminance	0.5415 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D840 #9740D8

analogous

#CDD840 #81D840 #40D84B

triadic

#81D840 #4081D8 #D84081

tetradic

#81D840 #40CDD8 #9740D8 #D84B40

square

#81D840 #40CDD8 #9740D8 #D84B40

split-complementary

#81D840 #4B40D8 #D840CD

monochromatic

#47831B #63B625 #81D840 #A3E273 #C4EDA6

Accessibility & contrast

On white

1.78

#81D840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.83

#81D840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D840

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D840	#FFFFFF	#000000	##000000
##81D840	1.00	1.78	11.83	11.83
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.83	21.00	1.00	1.00
##000000	11.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C727

Deuteranopia (green-blind)

#D4C04E

Tritanopia (blue-blind)

#7FD0BA

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #81d840;
/* rgb */ color: rgb(129, 216, 64);
/* oklch */ color: oklch(79.8% 0.201 134.7);

Tailwind

colors: {
  custom: {
    50: '#ace47e',
    500: '#81d840',
    950: '#000000',
  },
}

SCSS

$custom: #81d840;
$custom-light: #ace47e;
$custom-dark: #000000;

JSON

{
  "hex": "#81d840",
  "rgb": {
    "r": 129,
    "g": 216,
    "b": 64
  },
  "hsl": {
    "h": 94.342,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.79804,
    "c": 0.20147,
    "h": 134.7
  },
  "luminance": 0.54149
}

Semantic roles & 50–950 ramp

primary

#81D840

secondary

#64338A

accent

#3FE9A0

background

#FDFEFB

surface

#F8FCF2

border

#D1D5CC

text

#11160A

muted

#81847D

Preview Lab

Preview with #81D840

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

Preview Lab → · Contrast checker → · Palette generator →