#81AC38#81AC38

#81AC38 is a light, vivid yellow-green. Relative luminance 0.345; OKLCH L 69.0% C 0.151 H 127.5°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#81AC38
RGB	rgb(129, 172, 56)
HSL	hsl(82, 51%, 45%)
HSV	hsv(82, 67%, 67%)
CMYK	cmyk(25%, 0%, 67.4%, 32.5%)
CIE-LAB	lab(65.32, -32.24, 52.77)
CIE-LCH	lch(65.32, 61.84, 121.42°)
OKLab	oklab(69.01% -0.0919 0.1199)
OKLCH	oklch(69.01% 0.151 127.5)
XYZ	xyz(24.5196, 34.4572, 9.0997)
Luminance	0.3446 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81AC38 #6338AC

analogous

#AC9D38 #81AC38 #47AC38

triadic

#81AC38 #3881AC #AC3881

tetradic

#81AC38 #38AC9D #6338AC #AC3847

square

#81AC38 #38AC9D #6338AC #AC3847

split-complementary

#81AC38 #3847AC #9D38AC

monochromatic

#3C501A #5E7E29 #81AC38 #9FC958 #BAD887

Accessibility & contrast

On white

2.66

#81AC38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#81AC38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81AC38

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81AC38	#FFFFFF	#000000	##000000
##81AC38	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A028

Deuteranopia (green-blind)

#AF9E41

Tritanopia (blue-blind)

#86A494

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #81ac38;
/* rgb */ color: rgb(129, 172, 56);
/* oklch */ color: oklch(69.0% 0.151 127.5);

Tailwind

colors: {
  custom: {
    50: '#a9c575',
    500: '#81ac38',
    950: '#000000',
  },
}

SCSS

$custom: #81ac38;
$custom-light: #a9c575;
$custom-dark: #000000;

JSON

{
  "hex": "#81ac38",
  "rgb": {
    "r": 129,
    "g": 172,
    "b": 56
  },
  "hsl": {
    "h": 82.241,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.6901,
    "c": 0.15109,
    "h": 127.5
  },
  "luminance": 0.34458
}

Semantic roles & 50–950 ramp

primary

#81AC38

secondary

#977EC2

accent

#4DDA82

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101209

muted

#7F817B

Preview Lab

Preview with #81AC38

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

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