#81CB45#81CB45

#81CB45 is a light, vivid yellow-green. Relative luminance 0.478; OKLCH L 76.7% C 0.182 H 133.8°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#81CB45
RGB	rgb(129, 203, 69)
HSL	hsl(93, 56%, 53%)
HSV	hsv(93, 66%, 80%)
CMYK	cmyk(36.5%, 0%, 66%, 20.4%)
CIE-LAB	lab(74.70, -45.01, 57.41)
CIE-LCH	lch(74.70, 72.95, 128.10°)
OKLab	oklab(76.67% -0.1258 0.1314)
OKLCH	oklch(76.67% 0.182 133.8)
XYZ	xyz(31.4828, 47.8073, 13.1980)
Luminance	0.4781 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CB45 #8F45CB

analogous

#C4CB45 #81CB45 #45CB4C

triadic

#81CB45 #4581CB #CB4581

tetradic

#81CB45 #45C4CB #8F45CB #CB4C45

square

#81CB45 #45C4CB #8F45CB #CB4C45

split-complementary

#81CB45 #4C45CB #CB45C4

monochromatic

#467521 #63A52E #81CB45 #A1D875 #C2E6A5

Accessibility & contrast

On white

1.99

#81CB45 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.56

#81CB45 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CB45

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CB45	#FFFFFF	#000000	##000000
##81CB45	1.00	1.99	10.56	10.56
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.56	21.00	1.00	1.00
##000000	10.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BC33

Deuteranopia (green-blind)

#C9B650

Tritanopia (blue-blind)

#81C3B0

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #81cb45;
/* rgb */ color: rgb(129, 203, 69);
/* oklch */ color: oklch(76.7% 0.182 133.8);

Tailwind

colors: {
  custom: {
    50: '#aadb7f',
    500: '#81cb45',
    950: '#000000',
  },
}

SCSS

$custom: #81cb45;
$custom-light: #aadb7f;
$custom-dark: #000000;

JSON

{
  "hex": "#81cb45",
  "rgb": {
    "r": 129,
    "g": 203,
    "b": 69
  },
  "hsl": {
    "h": 93.134,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.76673,
    "c": 0.1819,
    "h": 133.8
  },
  "luminance": 0.47809
}

Semantic roles & 50–950 ramp

primary

#81CB45

secondary

#B999D3

accent

#48E09C

background

#FAFDF8

surface

#F5FBEF

border

#CFD4CA

text

#10150A

muted

#7F837C

Preview Lab

Preview with #81CB45

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

Preview Lab → · Contrast checker → · Palette generator →