#31901B#31901B

#31901B is a mid, vivid green. Relative luminance 0.207; OKLCH L 57.5% C 0.173 H 140.5°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#31901B
RGB	rgb(49, 144, 27)
HSL	hsl(109, 68%, 34%)
HSV	hsv(109, 81%, 56%)
CMYK	cmyk(66%, 0%, 81.3%, 43.5%)
CIE-LAB	lab(52.59, -48.82, 49.50)
CIE-LCH	lch(52.59, 69.53, 134.60°)
OKLab	oklab(57.53% -0.1337 0.1101)
OKLCH	oklch(57.53% 0.173 140.5)
XYZ	xyz(11.4371, 20.6775, 4.4251)
Luminance	0.2068 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31901B #7A1B90

analogous

#6B901B #31901B #1B903F

triadic

#31901B #1B3190 #901B31

tetradic

#31901B #1B6B90 #7A1B90 #903F1B

square

#31901B #1B6B90 #7A1B90 #903F1B

split-complementary

#31901B #3F1B90 #901B6B

monochromatic

#0E2908 #1F5C11 #31901B #43C425 #64DD49

Accessibility & contrast

On white

4.09

#31901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#31901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #31901B

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31901B	#FFFFFF	#000000	##000000
##31901B	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948200

Deuteranopia (green-blind)

#897B29

Tritanopia (blue-blind)

#218B7A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #31901b;
/* rgb */ color: rgb(49, 144, 27);
/* oklch */ color: oklch(57.5% 0.173 140.5);

Tailwind

colors: {
  custom: {
    50: '#77b162',
    500: '#31901b',
    950: '#000000',
  },
}

SCSS

$custom: #31901b;
$custom-light: #77b162;
$custom-dark: #000000;

JSON

{
  "hex": "#31901b",
  "rgb": {
    "r": 49,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 108.718,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57529,
    "c": 0.17322,
    "h": 140.5
  },
  "luminance": 0.20679
}

Semantic roles & 50–950 ramp

primary

#31901B

secondary

#A848BF

accent

#3DEBCA

background

#F7FBF6

surface

#EEF6EB

border

#C9D0C6

text

#0A1106

muted

#7C807A

Preview Lab

Preview with #31901B

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

Preview Lab → · Contrast checker → · Palette generator →