#81CE57#81CE57

#81CE57 is a light, vivid yellow-green. Relative luminance 0.495; OKLCH L 77.6% C 0.172 H 136.0°. Best body text is #000000 at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#81CE57
RGB	rgb(129, 206, 87)
HSL	hsl(99, 55%, 57%)
HSV	hsv(99, 58%, 81%)
CMYK	cmyk(37.4%, 0%, 57.8%, 19.2%)
CIE-LAB	lab(75.76, -44.65, 50.85)
CIE-LCH	lch(75.76, 67.67, 131.28°)
OKLab	oklab(77.59% -0.1235 0.1194)
OKLCH	oklch(77.59% 0.172 136)
XYZ	xyz(32.8440, 49.4963, 16.8381)
Luminance	0.4950 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CE57 #A457CE

analogous

#BCCE57 #81CE57 #57CE69

triadic

#81CE57 #5781CE #CE5781

tetradic

#81CE57 #57BCCE #A457CE #CE6957

square

#81CE57 #57BCCE #A457CE #CE6957

split-complementary

#81CE57 #6957CE #CE57BC

monochromatic

#488427 #61B334 #81CE57 #A5DC86 #C8EAB6

Accessibility & contrast

On white

1.93

#81CE57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.90

#81CE57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CE57

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CE57	#FFFFFF	#000000	##000000
##81CE57	1.00	1.93	10.90	10.90
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.90	21.00	1.00	1.00
##000000	10.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BF4B

Deuteranopia (green-blind)

#CAB860

Tritanopia (blue-blind)

#7FC7B4

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #81ce57;
/* rgb */ color: rgb(129, 206, 87);
/* oklch */ color: oklch(77.6% 0.172 136.0);

Tailwind

colors: {
  custom: {
    50: '#aadd8a',
    500: '#81ce57',
    950: '#000000',
  },
}

SCSS

$custom: #81ce57;
$custom-light: #aadd8a;
$custom-dark: #000000;

JSON

{
  "hex": "#81ce57",
  "rgb": {
    "r": 129,
    "g": 206,
    "b": 87
  },
  "hsl": {
    "h": 98.824,
    "s": 54.839,
    "l": 57.451
  },
  "oklch": {
    "l": 0.77586,
    "c": 0.17177,
    "h": 136
  },
  "luminance": 0.49498
}

Semantic roles & 50–950 ramp

primary

#81CE57

secondary

#C7A8D8

accent

#4ADEAA

background

#FAFDF8

surface

#F4FBF0

border

#CED4CB

text

#10150C

muted

#7F837D

Preview Lab

Preview with #81CE57

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

Preview Lab → · Contrast checker → · Palette generator →