#81BB57#81BB57

#81BB57 is a light, vivid yellow-green. Relative luminance 0.409; OKLCH L 73.0% C 0.145 H 133.7°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#81BB57
RGB	rgb(129, 187, 87)
HSL	hsl(95, 42%, 54%)
HSV	hsv(95, 53%, 73%)
CMYK	cmyk(31%, 0%, 53.5%, 26.7%)
CIE-LAB	lab(70.10, -36.30, 44.24)
CIE-LCH	lch(70.10, 57.22, 129.37°)
OKLab	oklab(72.98% -0.1006 0.1051)
OKLCH	oklch(72.98% 0.145 133.7)
XYZ	xyz(28.5433, 40.8949, 15.4046)
Luminance	0.4090 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB57 #9157BB

analogous

#B3BB57 #81BB57 #57BB5F

triadic

#81BB57 #5781BB #BB5781

tetradic

#81BB57 #57B3BB #9157BB #BB5F57

square

#81BB57 #57B3BB #9157BB #BB5F57

split-complementary

#81BB57 #5F57BB #BB57B3

monochromatic

#476C2C #63973D #81BB57 #A2CD83 #C2DEAE

Accessibility & contrast

On white

2.29

#81BB57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.18

#81BB57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB57

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB57	#FFFFFF	#000000	##000000
##81BB57	1.00	2.29	9.18	9.18
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.18	21.00	1.00	1.00
##000000	9.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AE4E

Deuteranopia (green-blind)

#B9AA5E

Tritanopia (blue-blind)

#81B5A4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bb57;
/* rgb */ color: rgb(129, 187, 87);
/* oklch */ color: oklch(73.0% 0.145 133.7);

Tailwind

colors: {
  custom: {
    50: '#a8d089',
    500: '#81bb57',
    950: '#000000',
  },
}

SCSS

$custom: #81bb57;
$custom-light: #a8d089;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb57",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 87
  },
  "hsl": {
    "h": 94.8,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.72983,
    "c": 0.14542,
    "h": 133.7
  },
  "luminance": 0.40896
}

Semantic roles & 50–950 ramp

primary

#81BB57

secondary

#BAA2CC

accent

#56D29E

background

#FAFCF8

surface

#F4F9F0

border

#CED2CB

text

#10140C

muted

#7F827D

Preview Lab

Preview with #81BB57

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

Preview Lab → · Contrast checker → · Palette generator →