#131B04#131B04

#131B04 is a very dark, muted yellow-green. Relative luminance 0.009; OKLCH L 20.7% C 0.043 H 125.4°. Best body text is #FFFFFF at 17.70:1 contrast (WCAG AA passes).

Color values

HEX	#131B04
RGB	rgb(19, 27, 4)
HSL	hsl(81, 74%, 6%)
HSV	hsv(81, 85%, 11%)
CMYK	cmyk(29.6%, 0%, 85.2%, 89.4%)
CIE-LAB	lab(8.40, -8.27, 10.79)
CIE-LCH	lch(8.40, 13.59, 127.47°)
OKLab	oklab(20.74% -0.025 0.0352)
OKLCH	oklch(20.74% 0.043 125.4)
XYZ	xyz(0.6824, 0.9311, 0.2586)
Luminance	0.0093 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B04 #0C041B

analogous

#1B1704 #131B04 #071B04

triadic

#131B04 #04131B #1B0413

tetradic

#131B04 #041B17 #0C041B #1B0407

square

#131B04 #041B17 #0C041B #1B0407

split-complementary

#131B04 #04071B #17041B

monochromatic

#131B04 #131B04 #131B04 #39500C #5E8614

Accessibility & contrast

On white

17.70

#131B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#131B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B04

17.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B04	#FFFFFF	#000000	##FFFFFF
##131B04	1.00	17.70	1.19	17.70
#FFFFFF	17.70	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1902

Deuteranopia (green-blind)

#1C1805

Tritanopia (blue-blind)

#141916

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #131b04;
/* rgb */ color: rgb(19, 27, 4);
/* oklch */ color: oklch(20.7% 0.043 125.4);

Tailwind

colors: {
  custom: {
    50: '#505748',
    500: '#131b04',
    950: '#000000',
  },
}

SCSS

$custom: #131b04;
$custom-light: #505748;
$custom-dark: #000000;

JSON

{
  "hex": "#131b04",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 4
  },
  "hsl": {
    "h": 80.87,
    "s": 74.194,
    "l": 6.078
  },
  "oklch": {
    "l": 0.20739,
    "c": 0.04314,
    "h": 125.4
  },
  "luminance": 0.00931
}

Semantic roles & 50–950 ramp

primary

#131B04

secondary

#341E5D

accent

#37F178

background

#F4F5F4

surface

#E7E9E6

border

#C3C5C2

text

#020300

muted

#787877

Preview Lab

Preview with #131B04

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

Preview Lab → · Contrast checker → · Palette generator →