#31871B#31871B

#31871B is a mid, vivid green. Relative luminance 0.181; OKLCH L 55.0% C 0.163 H 140.2°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#31871B
RGB	rgb(49, 135, 27)
HSL	hsl(108, 67%, 32%)
HSV	hsv(108, 80%, 53%)
CMYK	cmyk(63.7%, 0%, 80%, 47.1%)
CIE-LAB	lab(49.57, -45.57, 46.62)
CIE-LCH	lch(49.57, 65.20, 134.35°)
OKLab	oklab(55.02% -0.125 0.1041)
OKLCH	oklch(55.02% 0.163 140.2)
XYZ	xyz(10.1280, 18.0591, 3.9887)
Luminance	0.1806 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31871B #711B87

analogous

#67871B #31871B #1B873B

triadic

#31871B #1B3187 #871B31

tetradic

#31871B #1B6787 #711B87 #873B1B

square

#31871B #1B6787 #711B87 #873B1B

split-complementary

#31871B #3B1B87 #871B67

monochromatic

#0C2107 #1E5411 #31871B #44BA25 #62D943

Accessibility & contrast

On white

4.55

#31871B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#31871B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #31871B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31871B	#FFFFFF	#000000	##000000
##31871B	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7A00

Deuteranopia (green-blind)

#807327

Tritanopia (blue-blind)

#248273

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #31871b;
/* rgb */ color: rgb(49, 135, 27);
/* oklch */ color: oklch(55.0% 0.163 140.2);

Tailwind

colors: {
  custom: {
    50: '#75ab61',
    500: '#31871b',
    950: '#000000',
  },
}

SCSS

$custom: #31871b;
$custom-light: #75ab61;
$custom-dark: #000000;

JSON

{
  "hex": "#31871b",
  "rgb": {
    "r": 49,
    "g": 135,
    "b": 27
  },
  "hsl": {
    "h": 107.778,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.55023,
    "c": 0.16265,
    "h": 140.2
  },
  "luminance": 0.1806
}

Semantic roles & 50–950 ramp

primary

#31871B

secondary

#A244BA

accent

#3EEAC7

background

#F7FAF6

surface

#EEF4EB

border

#C9CEC6

text

#091005

muted

#7B7F7A

Preview Lab

Preview with #31871B

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

Preview Lab → · Contrast checker → · Palette generator →