#28731B#28731B

#28731B is a mid, vivid green. Relative luminance 0.128; OKLCH L 49.1% C 0.142 H 141.0°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#28731B
RGB	rgb(40, 115, 27)
HSL	hsl(111, 62%, 28%)
HSV	hsv(111, 77%, 45%)
CMYK	cmyk(65.2%, 0%, 76.5%, 54.9%)
CIE-LAB	lab(42.45, -40.33, 39.53)
CIE-LCH	lch(42.45, 56.47, 135.58°)
OKLab	oklab(49.05% -0.1103 0.0893)
OKLCH	oklch(49.05% 0.142 141)
XYZ	xyz(7.2033, 12.7910, 3.1260)
Luminance	0.1279 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28731B #661B73

analogous

#54731B #28731B #1B733A

triadic

#28731B #1B2873 #731B28

tetradic

#28731B #1B5473 #661B73 #733A1B

square

#28731B #1B5473 #661B73 #733A1B

split-complementary

#28731B #3A1B73 #731B54

monochromatic

#091906 #17410F #28731B #39A527 #4FD038

Accessibility & contrast

On white

5.90

#28731B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#28731B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28731B

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28731B	#FFFFFF	#000000	##FFFFFF
##28731B	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#76680B

Deuteranopia (green-blind)

#6D6224

Tritanopia (blue-blind)

#1C6F62

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #28731b;
/* rgb */ color: rgb(40, 115, 27);
/* oklch */ color: oklch(49.1% 0.142 141.0);

Tailwind

colors: {
  custom: {
    50: '#6d9c5e',
    500: '#28731b',
    950: '#000000',
  },
}

SCSS

$custom: #28731b;
$custom-light: #6d9c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#28731b",
  "rgb": {
    "r": 40,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 111.136,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.49053,
    "c": 0.14194,
    "h": 141
  },
  "luminance": 0.12792
}

Semantic roles & 50–950 ramp

primary

#28731B

secondary

#9942A8

accent

#43E5CD

background

#F6F9F5

surface

#ECF2E9

border

#C7CCC5

text

#080E05

muted

#7B7E79

Preview Lab

Preview with #28731B

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

Preview Lab → · Contrast checker → · Palette generator →