#31580D#31580D

#31580D is a dark, moderate yellow-green. Relative luminance 0.077; OKLCH L 41.6% C 0.110 H 133.9°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#31580D
RGB	rgb(49, 88, 13)
HSL	hsl(91, 74%, 20%)
HSV	hsv(91, 85%, 35%)
CMYK	cmyk(44.3%, 0%, 85.2%, 65.5%)
CIE-LAB	lab(33.27, -27.17, 35.91)
CIE-LCH	lch(33.27, 45.03, 127.12°)
OKLab	oklab(41.56% -0.0764 0.0794)
OKLCH	oklch(41.56% 0.11 133.9)
XYZ	xyz(4.8289, 7.6612, 1.6050)
Luminance	0.0766 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31580D #340D58

analogous

#57580D #31580D #0D580F

triadic

#31580D #0D3158 #580D31

tetradic

#31580D #0D5758 #340D58 #580F0D

square

#31580D #0D5758 #340D58 #580F0D

split-complementary

#31580D #0F0D58 #580D57

monochromatic

#0F1B04 #132305 #31580D #4F8D15 #6CC31D

Accessibility & contrast

On white

8.29

#31580D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#31580D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31580D

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31580D	#FFFFFF	#000000	##FFFFFF
##31580D	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5000

Deuteranopia (green-blind)

#574D15

Tritanopia (blue-blind)

#31544A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #31580d;
/* rgb */ color: rgb(49, 88, 13);
/* oklch */ color: oklch(41.6% 0.110 133.9);

Tailwind

colors: {
  custom: {
    50: '#6d8753',
    500: '#31580d',
    950: '#000000',
  },
}

SCSS

$custom: #31580d;
$custom-light: #6d8753;
$custom-dark: #000000;

JSON

{
  "hex": "#31580d",
  "rgb": {
    "r": 49,
    "g": 88,
    "b": 13
  },
  "hsl": {
    "h": 91.2,
    "s": 74.257,
    "l": 19.804
  },
  "oklch": {
    "l": 0.41564,
    "c": 0.1102,
    "h": 133.9
  },
  "luminance": 0.07661
}

Semantic roles & 50–950 ramp

primary

#31580D

secondary

#622E93

accent

#37F198

background

#F6F8F4

surface

#ECEFE8

border

#C7CAC4

text

#070B03

muted

#7A7C78

Preview Lab

Preview with #31580D

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

Preview Lab → · Contrast checker → · Palette generator →