#31571B#31571B

#31571B is a dark, moderate yellow-green. Relative luminance 0.075; OKLCH L 41.4% C 0.099 H 135.9°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#31571B
RGB	rgb(49, 87, 27)
HSL	hsl(98, 53%, 22%)
HSV	hsv(98, 69%, 34%)
CMYK	cmyk(43.7%, 0%, 69%, 65.9%)
CIE-LAB	lab(33.02, -25.57, 29.75)
CIE-LCH	lch(33.02, 39.23, 130.68°)
OKLab	oklab(41.4% -0.0709 0.0687)
OKLCH	oklch(41.4% 0.099 135.9)
XYZ	xyz(4.8725, 7.5482, 2.2369)
Luminance	0.0755 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31571B #411B57

analogous

#4F571B #31571B #1B5723

triadic

#31571B #1B3157 #571B31

tetradic

#31571B #1B4F57 #411B57 #57231B

square

#31571B #1B4F57 #411B57 #57231B

split-complementary

#31571B #231B57 #571B4F

monochromatic

#0D1707 #17280D #31571B #4B8629 #66B438

Accessibility & contrast

On white

8.37

#31571B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#31571B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31571B

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31571B	#FFFFFF	#000000	##FFFFFF
##31571B	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5014

Deuteranopia (green-blind)

#554C20

Tritanopia (blue-blind)

#30544A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #31571b;
/* rgb */ color: rgb(49, 87, 27);
/* oklch */ color: oklch(41.4% 0.099 135.9);

Tailwind

colors: {
  custom: {
    50: '#6c875a',
    500: '#31571b',
    950: '#000000',
  },
}

SCSS

$custom: #31571b;
$custom-light: #6c875a;
$custom-dark: #000000;

JSON

{
  "hex": "#31571b",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 27
  },
  "hsl": {
    "h": 98,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.41399,
    "c": 0.09875,
    "h": 135.9
  },
  "luminance": 0.07548
}

Semantic roles & 50–950 ramp

primary

#31571B

secondary

#71418D

accent

#4CDCA7

background

#F6F8F5

surface

#ECEFE9

border

#C7CAC5

text

#070B04

muted

#7A7C79

Preview Lab

Preview with #31571B

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

Preview Lab → · Contrast checker → · Palette generator →