#81AC28#81AC28

#81AC28 is a light, vivid yellow-green. Relative luminance 0.343; OKLCH L 68.9% C 0.161 H 126.5°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#81AC28
RGB	rgb(129, 172, 40)
HSL	hsl(80, 62%, 42%)
HSV	hsv(80, 77%, 67%)
CMYK	cmyk(25%, 0%, 76.7%, 32.5%)
CIE-LAB	lab(65.22, -33.23, 58.57)
CIE-LCH	lch(65.22, 67.34, 119.57°)
OKLab	oklab(68.89% -0.096 0.1296)
OKLCH	oklch(68.89% 0.161 126.5)
XYZ	xyz(24.1889, 34.3250, 7.3581)
Luminance	0.3432 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81AC28 #5328AC

analogous

#AC9528 #81AC28 #3FAC28

triadic

#81AC28 #2881AC #AC2881

tetradic

#81AC28 #28AC95 #5328AC #AC283F

square

#81AC28 #28AC95 #5328AC #AC283F

split-complementary

#81AC28 #283FAC #9528AC

monochromatic

#374911 #5C7A1C #81AC28 #A2D23F #BADE71

Accessibility & contrast

On white

2.67

#81AC28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.86

#81AC28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81AC28

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81AC28	#FFFFFF	#000000	##000000
##81AC28	1.00	2.67	7.86	7.86
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.86	21.00	1.00	1.00
##000000	7.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A005

Deuteranopia (green-blind)

#AF9E35

Tritanopia (blue-blind)

#86A493

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #81ac28;
/* rgb */ color: rgb(129, 172, 40);
/* oklch */ color: oklch(68.9% 0.161 126.5);

Tailwind

colors: {
  custom: {
    50: '#aac56d',
    500: '#81ac28',
    950: '#000000',
  },
}

SCSS

$custom: #81ac28;
$custom-light: #aac56d;
$custom-dark: #000000;

JSON

{
  "hex": "#81ac28",
  "rgb": {
    "r": 129,
    "g": 172,
    "b": 40
  },
  "hsl": {
    "h": 79.545,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68892,
    "c": 0.16127,
    "h": 126.5
  },
  "luminance": 0.34325
}

Semantic roles & 50–950 ramp

primary

#81AC28

secondary

#886BC5

accent

#42E578

background

#FAFCF6

surface

#F4F8EC

border

#CED1C7

text

#101207

muted

#7F817A

Preview Lab

Preview with #81AC28

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

Preview Lab → · Contrast checker → · Palette generator →