#81C53B#81C53B

#81C53B is a light, vivid yellow-green. Relative luminance 0.449; OKLCH L 75.1% C 0.181 H 132.2°. Best body text is #000000 at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#81C53B
RGB	rgb(129, 197, 59)
HSL	hsl(90, 54%, 50%)
HSV	hsv(90, 70%, 77%)
CMYK	cmyk(34.5%, 0%, 70.1%, 22.7%)
CIE-LAB	lab(72.84, -43.20, 59.36)
CIE-LCH	lch(72.84, 73.41, 126.05°)
OKLab	oklab(75.13% -0.1217 0.1341)
OKLCH	oklch(75.13% 0.181 132.2)
XYZ	xyz(29.8086, 44.9142, 11.2356)
Luminance	0.4491 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C53B #7F3BC5

analogous

#C5C43B #81C53B #3CC53B

triadic

#81C53B #3B81C5 #C53B81

tetradic

#81C53B #3BC5C4 #7F3BC5 #C53B3C

square

#81C53B #3BC5C4 #7F3BC5 #C53B3C

split-complementary

#81C53B #3B3CC5 #C43BC5

monochromatic

#43671F #62962C #81C53B #9FD36A #BEE199

Accessibility & contrast

On white

2.10

#81C53B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.98

#81C53B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C53B

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C53B	#FFFFFF	#000000	##000000
##81C53B	1.00	2.10	9.98	9.98
#FFFFFF	2.10	1.00	21.00	21.00
#000000	9.98	21.00	1.00	1.00
##000000	9.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB625

Deuteranopia (green-blind)

#C4B147

Tritanopia (blue-blind)

#82BDAA

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #81c53b;
/* rgb */ color: rgb(129, 197, 59);
/* oklch */ color: oklch(75.1% 0.181 132.2);

Tailwind

colors: {
  custom: {
    50: '#aad779',
    500: '#81c53b',
    950: '#000000',
  },
}

SCSS

$custom: #81c53b;
$custom-light: #aad779;
$custom-dark: #000000;

JSON

{
  "hex": "#81c53b",
  "rgb": {
    "r": 129,
    "g": 197,
    "b": 59
  },
  "hsl": {
    "h": 89.565,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.75125,
    "c": 0.18109,
    "h": 132.2
  },
  "luminance": 0.44915
}

Semantic roles & 50–950 ramp

primary

#81C53B

secondary

#AD8FCD

accent

#4ADE93

background

#FAFDF7

surface

#F4FAEE

border

#CED3C9

text

#10140A

muted

#7F837C

Preview Lab

Preview with #81C53B

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

Preview Lab → · Contrast checker → · Palette generator →