#81B028#81B028

#81B028 is a light, vivid yellow-green. Relative luminance 0.359; OKLCH L 69.9% C 0.166 H 127.4°. Best body text is #000000 at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#81B028
RGB	rgb(129, 176, 40)
HSL	hsl(81, 63%, 42%)
HSV	hsv(81, 77%, 69%)
CMYK	cmyk(26.7%, 0%, 77.3%, 31%)
CIE-LAB	lab(66.42, -35.07, 59.70)
CIE-LCH	lch(66.42, 69.24, 120.43°)
OKLab	oklab(69.87% -0.101 0.132)
OKLCH	oklch(69.87% 0.166 127.4)
XYZ	xyz(24.9617, 35.8705, 7.6156)
Luminance	0.3587 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B028 #5728B0

analogous

#B09B28 #81B028 #3DB028

triadic

#81B028 #2881B0 #B02881

tetradic

#81B028 #28B09B #5728B0 #B0283D

square

#81B028 #28B09B #5728B0 #B0283D

split-complementary

#81B028 #283DB0 #9B28B0

monochromatic

#384C11 #5C7E1D #81B028 #A1D441 #BADF73

Accessibility & contrast

On white

2.57

#81B028 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.17

#81B028 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B028

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B028	#FFFFFF	#000000	##000000
##81B028	1.00	2.57	8.17	8.17
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.17	21.00	1.00	1.00
##000000	8.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A302

Deuteranopia (green-blind)

#B3A136

Tritanopia (blue-blind)

#86A897

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #81b028;
/* rgb */ color: rgb(129, 176, 40);
/* oklch */ color: oklch(69.9% 0.166 127.4);

Tailwind

colors: {
  custom: {
    50: '#aac76d',
    500: '#81b028',
    950: '#000000',
  },
}

SCSS

$custom: #81b028;
$custom-light: #aac76d;
$custom-dark: #000000;

JSON

{
  "hex": "#81b028",
  "rgb": {
    "r": 129,
    "g": 176,
    "b": 40
  },
  "hsl": {
    "h": 80.735,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.69867,
    "c": 0.16618,
    "h": 127.4
  },
  "luminance": 0.35871
}

Semantic roles & 50–950 ramp

primary

#81B028

secondary

#8C6DC6

accent

#42E67B

background

#FAFCF6

surface

#F4F8EC

border

#CED1C7

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B028

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

Preview Lab → · Contrast checker → · Palette generator →