#37731B#37731B

#37731B is a mid, vivid green. Relative luminance 0.132; OKLCH L 49.7% C 0.135 H 137.7°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#37731B
RGB	rgb(55, 115, 27)
HSL	hsl(101, 62%, 28%)
HSV	hsv(101, 77%, 45%)
CMYK	cmyk(52.2%, 0%, 76.5%, 54.9%)
CIE-LAB	lab(42.99, -36.03, 40.26)
CIE-LCH	lch(42.99, 54.03, 131.83°)
OKLab	oklab(49.66% -0.0997 0.0907)
OKLCH	oklch(49.66% 0.135 137.7)
XYZ	xyz(7.9038, 13.1523, 3.1588)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37731B #571B73

analogous

#63731B #37731B #1B732B

triadic

#37731B #1B3773 #731B37

tetradic

#37731B #1B6373 #571B73 #732B1B

square

#37731B #1B6373 #571B73 #732B1B

split-complementary

#37731B #2B1B73 #731B63

monochromatic

#0C1906 #1F410F #37731B #4FA527 #69D038

Accessibility & contrast

On white

5.78

#37731B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#37731B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37731B

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37731B	#FFFFFF	#000000	##FFFFFF
##37731B	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#77690A

Deuteranopia (green-blind)

#6F6424

Tritanopia (blue-blind)

#336F62

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #37731b;
/* rgb */ color: rgb(55, 115, 27);
/* oklch */ color: oklch(49.7% 0.135 137.7);

Tailwind

colors: {
  custom: {
    50: '#749c5e',
    500: '#37731b',
    950: '#000000',
  },
}

SCSS

$custom: #37731b;
$custom-light: #749c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#37731b",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 100.909,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.49656,
    "c": 0.13478,
    "h": 137.7
  },
  "luminance": 0.13153
}

Semantic roles & 50–950 ramp

primary

#37731B

secondary

#8742A8

accent

#43E5B1

background

#F7F9F5

surface

#EDF2E9

border

#C8CCC5

text

#090E05

muted

#7B7E79

Preview Lab

Preview with #37731B

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

Preview Lab → · Contrast checker → · Palette generator →