#81AC3B#81AC3B

#81AC3B is a light, vivid yellow-green. Relative luminance 0.345; OKLCH L 69.0% C 0.149 H 127.7°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#81AC3B
RGB	rgb(129, 172, 59)
HSL	hsl(83, 49%, 45%)
HSV	hsv(83, 66%, 67%)
CMYK	cmyk(25%, 0%, 65.7%, 32.5%)
CIE-LAB	lab(65.35, -32.02, 51.56)
CIE-LCH	lch(65.35, 60.69, 121.84°)
OKLab	oklab(69.04% -0.0911 0.1178)
OKLCH	oklch(69.04% 0.149 127.7)
XYZ	xyz(24.5952, 34.4875, 9.4978)
Luminance	0.3449 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81AC3B #663BAC

analogous

#AC9F3B #81AC3B #48AC3B

triadic

#81AC3B #3B81AC #AC3B81

tetradic

#81AC3B #3BAC9F #663BAC #AC3B48

square

#81AC3B #3BAC9F #663BAC #AC3B48

split-complementary

#81AC3B #3B48AC #9F3BAC

monochromatic

#3D511C #5F7E2B #81AC3B #9FC75D #BAD78A

Accessibility & contrast

On white

2.66

#81AC3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#81AC3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81AC3B

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81AC3B	#FFFFFF	#000000	##000000
##81AC3B	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A02C

Deuteranopia (green-blind)

#AE9E44

Tritanopia (blue-blind)

#85A495

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #81ac3b;
/* rgb */ color: rgb(129, 172, 59);
/* oklch */ color: oklch(69.0% 0.149 127.7);

Tailwind

colors: {
  custom: {
    50: '#a9c577',
    500: '#81ac3b',
    950: '#000000',
  },
}

SCSS

$custom: #81ac3b;
$custom-light: #a9c577;
$custom-dark: #000000;

JSON

{
  "hex": "#81ac3b",
  "rgb": {
    "r": 129,
    "g": 172,
    "b": 59
  },
  "hsl": {
    "h": 82.832,
    "s": 48.918,
    "l": 45.294
  },
  "oklch": {
    "l": 0.69037,
    "c": 0.14885,
    "h": 127.7
  },
  "luminance": 0.34488
}

Semantic roles & 50–950 ramp

primary

#81AC3B

secondary

#9A81C1

accent

#4FD884

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101209

muted

#7F817B

Preview Lab

Preview with #81AC3B

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

Preview Lab → · Contrast checker → · Palette generator →