#81DE40#81DE40

#81DE40 is a light, highly saturated yellow-green. Relative luminance 0.573; OKLCH L 81.3% C 0.209 H 135.3°. Best body text is #000000 at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#81DE40
RGB	rgb(129, 222, 64)
HSL	hsl(95, 71%, 56%)
HSV	hsv(95, 71%, 87%)
CMYK	cmyk(41.9%, 0%, 71.2%, 12.9%)
CIE-LAB	lab(80.34, -53.14, 65.14)
CIE-LCH	lch(80.34, 84.07, 129.21°)
OKLab	oklab(81.27% -0.1483 0.1469)
OKLCH	oklch(81.27% 0.209 135.3)
XYZ	xyz(36.0991, 57.2778, 14.0031)
Luminance	0.5728 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81DE40 #9D40DE

analogous

#D0DE40 #81DE40 #40DE4E

triadic

#81DE40 #4081DE #DE4081

tetradic

#81DE40 #40D0DE #9D40DE #DE4E40

square

#81DE40 #40D0DE #9D40DE #DE4E40

split-complementary

#81DE40 #4E40DE #DE40D0

monochromatic

#488B18 #62C021 #81DE40 #A3E774 #C6F0A8

Accessibility & contrast

On white

1.69

#81DE40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.46

#81DE40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81DE40

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81DE40	#FFFFFF	#000000	##000000
##81DE40	1.00	1.69	12.46	12.46
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.46	21.00	1.00	1.00
##000000	12.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6CC24

Deuteranopia (green-blind)

#DAC44F

Tritanopia (blue-blind)

#7ED6BF

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #81de40;
/* rgb */ color: rgb(129, 222, 64);
/* oklch */ color: oklch(81.3% 0.209 135.3);

Tailwind

colors: {
  custom: {
    50: '#ace97e',
    500: '#81de40',
    950: '#000000',
  },
}

SCSS

$custom: #81de40;
$custom-light: #ace97e;
$custom-dark: #000000;

JSON

{
  "hex": "#81de40",
  "rgb": {
    "r": 129,
    "g": 222,
    "b": 64
  },
  "hsl": {
    "h": 95.316,
    "s": 70.536,
    "l": 56.078
  },
  "oklch": {
    "l": 0.81268,
    "c": 0.20874,
    "h": 135.3
  },
  "luminance": 0.5728
}

Semantic roles & 50–950 ramp

primary

#81DE40

secondary

#6A3191

accent

#3AEDA4

background

#FDFEFB

surface

#F8FDF2

border

#D1D5CC

text

#11160B

muted

#81847E

Preview Lab

Preview with #81DE40

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

Preview Lab → · Contrast checker → · Palette generator →