#31831B#31831B

#31831B is a mid, vivid green. Relative luminance 0.170; OKLCH L 53.9% C 0.158 H 140.1°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#31831B
RGB	rgb(49, 131, 27)
HSL	hsl(107, 66%, 31%)
HSV	hsv(107, 79%, 51%)
CMYK	cmyk(62.6%, 0%, 79.4%, 48.6%)
CIE-LAB	lab(48.21, -44.09, 45.32)
CIE-LCH	lch(48.21, 63.23, 134.21°)
OKLab	oklab(53.9% -0.121 0.1013)
OKLCH	oklch(53.9% 0.158 140.1)
XYZ	xyz(9.5803, 16.9638, 3.8062)
Luminance	0.1696 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31831B #6D1B83

analogous

#65831B #31831B #1B8339

triadic

#31831B #1B3183 #831B31

tetradic

#31831B #1B6583 #6D1B83 #83391B

square

#31831B #1B6583 #6D1B83 #83391B

split-complementary

#31831B #391B83 #831B65

monochromatic

#0B1E06 #1E5011 #31831B #44B625 #61D841

Accessibility & contrast

On white

4.78

#31831B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#31831B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31831B

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31831B	#FFFFFF	#000000	##FFFFFF
##31831B	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#877702

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#267F6F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #31831b;
/* rgb */ color: rgb(49, 131, 27);
/* oklch */ color: oklch(53.9% 0.158 140.1);

Tailwind

colors: {
  custom: {
    50: '#74a860',
    500: '#31831b',
    950: '#000000',
  },
}

SCSS

$custom: #31831b;
$custom-light: #74a860;
$custom-dark: #000000;

JSON

{
  "hex": "#31831b",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 27
  },
  "hsl": {
    "h": 107.308,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53903,
    "c": 0.15785,
    "h": 140.1
  },
  "luminance": 0.16965
}

Semantic roles & 50–950 ramp

primary

#31831B

secondary

#9E43B6

accent

#3FE9C5

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#091005

muted

#7B7F79

Preview Lab

Preview with #31831B

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

Preview Lab → · Contrast checker → · Palette generator →