#81B418#81B418

#81B418 is a light, vivid yellow-green. Relative luminance 0.374; OKLCH L 70.8% C 0.178 H 127.7°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#81B418
RGB	rgb(129, 180, 24)
HSL	hsl(80, 76%, 40%)
HSV	hsv(80, 87%, 71%)
CMYK	cmyk(28.3%, 0%, 86.7%, 29.4%)
CIE-LAB	lab(67.56, -37.51, 64.98)
CIE-LCH	lch(67.56, 75.03, 120.00°)
OKLab	oklab(70.77% -0.1086 0.1407)
OKLCH	oklch(70.77% 0.178 127.7)
XYZ	xyz(25.5395, 37.3750, 6.7325)
Luminance	0.3738 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B418 #4B18B4

analogous

#B49918 #81B418 #33B418

triadic

#81B418 #1881B4 #B41881

tetradic

#81B418 #18B499 #4B18B4 #B41833

square

#81B418 #18B499 #4B18B4 #B41833

split-complementary

#81B418 #1833B4 #9918B4

monochromatic

#34480A #5A7E11 #81B418 #A5E227 #BCE95D

Accessibility & contrast

On white

2.48

#81B418 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#81B418 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B418

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B418	#FFFFFF	#000000	##000000
##81B418	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA700

Deuteranopia (green-blind)

#B7A42D

Tritanopia (blue-blind)

#86AB99

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #81b418;
/* rgb */ color: rgb(129, 180, 24);
/* oklch */ color: oklch(70.8% 0.178 127.7);

Tailwind

colors: {
  custom: {
    50: '#aaca68',
    500: '#81b418',
    950: '#000000',
  },
}

SCSS

$custom: #81b418;
$custom-light: #aaca68;
$custom-dark: #000000;

JSON

{
  "hex": "#81b418",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 24
  },
  "hsl": {
    "h": 79.615,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.7077,
    "c": 0.17774,
    "h": 127.7
  },
  "luminance": 0.37376
}

Semantic roles & 50–950 ramp

primary

#81B418

secondary

#805BCD

accent

#35F373

background

#FAFCF6

surface

#F5F8EB

border

#CFD1C6

text

#111307

muted

#80827A

Preview Lab

Preview with #81B418

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

Preview Lab → · Contrast checker → · Palette generator →