#31731B#31731B

#31731B is a mid, vivid green. Relative luminance 0.130; OKLCH L 49.4% C 0.138 H 139.2°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#31731B
RGB	rgb(49, 115, 27)
HSL	hsl(105, 62%, 28%)
HSV	hsv(105, 77%, 45%)
CMYK	cmyk(57.4%, 0%, 76.5%, 54.9%)
CIE-LAB	lab(42.75, -37.88, 39.94)
CIE-LCH	lch(42.75, 55.05, 133.49°)
OKLab	oklab(49.39% -0.1043 0.0901)
OKLCH	oklch(49.39% 0.138 139.2)
XYZ	xyz(7.5949, 12.9929, 3.1444)
Luminance	0.1299 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31731B #5D1B73

analogous

#5D731B #31731B #1B7331

triadic

#31731B #1B3173 #731B31

tetradic

#31731B #1B5D73 #5D1B73 #73311B

square

#31731B #1B5D73 #5D1B73 #73311B

split-complementary

#31731B #311B73 #731B5D

monochromatic

#0B1906 #1C410F #31731B #46A527 #5ED038

Accessibility & contrast

On white

5.84

#31731B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#31731B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31731B

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31731B	#FFFFFF	#000000	##FFFFFF
##31731B	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#77680A

Deuteranopia (green-blind)

#6E6324

Tritanopia (blue-blind)

#2A6F62

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #31731b;
/* rgb */ color: rgb(49, 115, 27);
/* oklch */ color: oklch(49.4% 0.138 139.2);

Tailwind

colors: {
  custom: {
    50: '#719c5e',
    500: '#31731b',
    950: '#000000',
  },
}

SCSS

$custom: #31731b;
$custom-light: #719c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#31731b",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 105,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.49392,
    "c": 0.13782,
    "h": 139.2
  },
  "luminance": 0.12994
}

Semantic roles & 50–950 ramp

primary

#31731B

secondary

#8E42A8

accent

#43E5BC

background

#F7F9F5

surface

#EDF2E9

border

#C8CCC5

text

#080E05

muted

#7B7E79

Preview Lab

Preview with #31731B

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

Preview Lab → · Contrast checker → · Palette generator →