#31591C#31591C

#31591C is a dark, moderate yellow-green. Relative luminance 0.079; OKLCH L 42.0% C 0.101 H 136.5°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#31591C
RGB	rgb(49, 89, 28)
HSL	hsl(99, 52%, 23%)
HSV	hsv(99, 69%, 35%)
CMYK	cmyk(44.9%, 0%, 68.5%, 65.1%)
CIE-LAB	lab(33.73, -26.42, 30.04)
CIE-LCH	lch(33.73, 40.00, 131.34°)
OKLab	oklab(41.98% -0.0732 0.0694)
OKLCH	oklch(41.98% 0.101 136.5)
XYZ	xyz(5.0485, 7.8813, 2.3536)
Luminance	0.0788 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31591C #441C59

analogous

#4F591C #31591C #1C5925

triadic

#31591C #1C3159 #591C31

tetradic

#31591C #1C4F59 #441C59 #59251C

square

#31591C #1C4F59 #441C59 #59251C

split-complementary

#31591C #251C59 #591C4F

monochromatic

#0D1707 #172A0D #31591C #4B882B #64B639

Accessibility & contrast

On white

8.15

#31591C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#31591C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31591C

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31591C	#FFFFFF	#000000	##FFFFFF
##31591C	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5115

Deuteranopia (green-blind)

#574E21

Tritanopia (blue-blind)

#2F564C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31591c;
/* rgb */ color: rgb(49, 89, 28);
/* oklch */ color: oklch(42.0% 0.101 136.5);

Tailwind

colors: {
  custom: {
    50: '#6d885b',
    500: '#31591c',
    950: '#000000',
  },
}

SCSS

$custom: #31591c;
$custom-light: #6d885b;
$custom-dark: #000000;

JSON

{
  "hex": "#31591c",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 28
  },
  "hsl": {
    "h": 99.344,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.41984,
    "c": 0.10087,
    "h": 136.5
  },
  "luminance": 0.07882
}

Semantic roles & 50–950 ramp

primary

#31591C

secondary

#74428F

accent

#4CDCAA

background

#F6F8F5

surface

#ECF0E9

border

#C7CBC5

text

#070B04

muted

#7A7C79

Preview Lab

Preview with #31591C

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

Preview Lab → · Contrast checker → · Palette generator →