#81CB3B#81CB3B

#81CB3B is a light, vivid yellow-green. Relative luminance 0.477; OKLCH L 76.6% C 0.189 H 133.0°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#81CB3B
RGB	rgb(129, 203, 59)
HSL	hsl(91, 58%, 51%)
HSV	hsv(91, 71%, 80%)
CMYK	cmyk(36.5%, 0%, 70.9%, 20.4%)
CIE-LAB	lab(74.63, -45.75, 61.18)
CIE-LCH	lch(74.63, 76.39, 126.79°)
OKLab	oklab(76.59% -0.1286 0.138)
OKLCH	oklch(76.59% 0.189 133)
XYZ	xyz(31.1982, 47.6934, 11.6988)
Luminance	0.4769 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CB3B #853BCB

analogous

#C9CB3B #81CB3B #3BCB3D

triadic

#81CB3B #3B81CB #CB3B81

tetradic

#81CB3B #3BC9CB #853BCB #CB3D3B

square

#81CB3B #3BC9CB #853BCB #CB3D3B

split-complementary

#81CB3B #3D3BCB #CB3BC9

monochromatic

#456E1D #639F2A #81CB3B #A0D86B #BFE59C

Accessibility & contrast

On white

1.99

#81CB3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.54

#81CB3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CB3B

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CB3B	#FFFFFF	#000000	##000000
##81CB3B	1.00	1.99	10.54	10.54
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.54	21.00	1.00	1.00
##000000	10.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BB23

Deuteranopia (green-blind)

#C9B648

Tritanopia (blue-blind)

#82C3AF

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #81cb3b;
/* rgb */ color: rgb(129, 203, 59);
/* oklch */ color: oklch(76.6% 0.189 133.0);

Tailwind

colors: {
  custom: {
    50: '#abdb7a',
    500: '#81cb3b',
    950: '#000000',
  },
}

SCSS

$custom: #81cb3b;
$custom-light: #abdb7a;
$custom-dark: #000000;

JSON

{
  "hex": "#81cb3b",
  "rgb": {
    "r": 129,
    "g": 203,
    "b": 59
  },
  "hsl": {
    "h": 90.833,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.76591,
    "c": 0.18858,
    "h": 133
  },
  "luminance": 0.47695
}

Semantic roles & 50–950 ramp

primary

#81CB3B

secondary

#B291D1

accent

#47E196

background

#FAFDF7

surface

#F5FBEE

border

#CFD4C9

text

#11150A

muted

#80837C

Preview Lab

Preview with #81CB3B

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

Preview Lab → · Contrast checker → · Palette generator →