#81B331#81B331

#81B331 is a light, vivid yellow-green. Relative luminance 0.371; OKLCH L 70.7% C 0.165 H 128.5°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#81B331
RGB	rgb(129, 179, 49)
HSL	hsl(83, 57%, 45%)
HSV	hsv(83, 73%, 70%)
CMYK	cmyk(27.9%, 0%, 72.6%, 29.8%)
CIE-LAB	lab(67.37, -35.93, 57.55)
CIE-LCH	lch(67.37, 67.85, 121.98°)
OKLab	oklab(70.66% -0.1026 0.1289)
OKLCH	oklch(70.66% 0.165 128.5)
XYZ	xyz(25.7277, 37.1284, 8.7161)
Luminance	0.3713 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B331 #6331B3

analogous

#B3A431 #81B331 #40B331

triadic

#81B331 #3181B3 #B33181

tetradic

#81B331 #31B3A4 #6331B3 #B33140

square

#81B331 #31B3A4 #6331B3 #B33140

split-complementary

#81B331 #3140B3 #A431B3

monochromatic

#3C5317 #5E8324 #81B331 #9FD052 #BADD82

Accessibility & contrast

On white

2.49

#81B331 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#81B331 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B331

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B331	#FFFFFF	#000000	##000000
##81B331	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA619

Deuteranopia (green-blind)

#B5A33D

Tritanopia (blue-blind)

#85AB9A

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #81b331;
/* rgb */ color: rgb(129, 179, 49);
/* oklch */ color: oklch(70.7% 0.165 128.5);

Tailwind

colors: {
  custom: {
    50: '#aaca72',
    500: '#81b331',
    950: '#000000',
  },
}

SCSS

$custom: #81b331;
$custom-light: #aaca72;
$custom-dark: #000000;

JSON

{
  "hex": "#81b331",
  "rgb": {
    "r": 129,
    "g": 179,
    "b": 49
  },
  "hsl": {
    "h": 83.077,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.70657,
    "c": 0.16477,
    "h": 128.5
  },
  "luminance": 0.37129
}

Semantic roles & 50–950 ramp

primary

#81B331

secondary

#977AC6

accent

#48E082

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B331

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

Preview Lab → · Contrast checker → · Palette generator →