#81BB4B#81BB4B

#81BB4B is a light, vivid yellow-green. Relative luminance 0.407; OKLCH L 72.8% C 0.156 H 132.2°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#81BB4B
RGB	rgb(129, 187, 75)
HSL	hsl(91, 45%, 51%)
HSV	hsv(91, 60%, 73%)
CMYK	cmyk(31%, 0%, 59.9%, 26.7%)
CIE-LAB	lab(69.98, -37.52, 49.67)
CIE-LCH	lch(69.98, 62.25, 127.07°)
OKLab	oklab(72.84% -0.1048 0.1157)
OKLCH	oklch(72.84% 0.156 132.2)
XYZ	xyz(28.0932, 40.7148, 13.0338)
Luminance	0.4072 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81BB4B #854BBB

analogous

#B9BB4B #81BB4B #4BBB4D

triadic

#81BB4B #4B81BB #BB4B81

tetradic

#81BB4B #4BB9BB #854BBB #BB4D4B

square

#81BB4B #4BB9BB #854BBB #BB4D4B

split-complementary

#81BB4B #4D4BBB #BB4BB9

monochromatic

#456526 #639237 #81BB4B #A0CC77 #BFDDA4

Accessibility & contrast

On white

2.30

#81BB4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#81BB4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81BB4B

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81BB4B	#FFFFFF	#000000	##000000
##81BB4B	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AE3F

Deuteranopia (green-blind)

#BAA953

Tritanopia (blue-blind)

#82B4A3

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #81bb4b;
/* rgb */ color: rgb(129, 187, 75);
/* oklch */ color: oklch(72.8% 0.156 132.2);

Tailwind

colors: {
  custom: {
    50: '#a9d081',
    500: '#81bb4b',
    950: '#000000',
  },
}

SCSS

$custom: #81bb4b;
$custom-light: #a9d081;
$custom-dark: #000000;

JSON

{
  "hex": "#81bb4b",
  "rgb": {
    "r": 129,
    "g": 187,
    "b": 75
  },
  "hsl": {
    "h": 91.071,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.72839,
    "c": 0.1561,
    "h": 132.2
  },
  "luminance": 0.40716
}

Semantic roles & 50–950 ramp

primary

#81BB4B

secondary

#B298CA

accent

#53D596

background

#FAFCF8

surface

#F4F9EF

border

#CED2CA

text

#10140B

muted

#7F827C

Preview Lab

Preview with #81BB4B

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

Preview Lab → · Contrast checker → · Palette generator →