#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
RGBrgb(129, 222, 64)
HSLhsl(95, 71%, 56%)
HSVhsv(95, 71%, 87%)
CMYKcmyk(41.9%, 0%, 71.2%, 12.9%)
CIE-LABlab(80.34, -53.14, 65.14)
CIE-LCHlch(80.34, 84.07, 129.21°)
OKLaboklab(81.27% -0.1483 0.1469)
OKLCHoklch(81.27% 0.209 135.3)
XYZxyz(36.0991, 57.2778, 14.0031)
Luminance0.5728 (WCAG relative)
Temperaturewarm
Familyyellow-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
##81DE401.001.6912.4612.46
#FFFFFF1.691.0021.0021.00
#00000012.4621.001.001.00
##00000012.4621.001.001.00

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 →

#81DE40 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva