#131B01#131B01

#131B01 is a very dark, muted yellow-green. Relative luminance 0.009; OKLCH L 20.7% C 0.049 H 123.9°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#131B01
RGB	rgb(19, 27, 1)
HSL	hsl(78, 93%, 5%)
HSV	hsv(78, 96%, 11%)
CMYK	cmyk(29.6%, 0%, 96.3%, 89.4%)
CIE-LAB	lab(8.35, -8.69, 11.93)
CIE-LCH	lch(8.35, 14.76, 126.08°)
OKLab	oklab(20.67% -0.0272 0.0406)
OKLCH	oklch(20.67% 0.049 123.9)
XYZ	xyz(0.6660, 0.9245, 0.1721)
Luminance	0.0092 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B01 #09011B

analogous

#1B1601 #131B01 #061B01

triadic

#131B01 #01131B #1B0113

tetradic

#131B01 #011B16 #09011B #1B0106

square

#131B01 #011B16 #09011B #1B0106

split-complementary

#131B01 #01061B #16011B

monochromatic

#151E01 #151E01 #151E01 #3D5603 #669105

Accessibility & contrast

On white

17.72

#131B01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#131B01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B01

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B01	#FFFFFF	#000000	##FFFFFF
##131B01	1.00	17.72	1.19	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1800

Deuteranopia (green-blind)

#1C1802

Tritanopia (blue-blind)

#151915

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #131b01;
/* rgb */ color: rgb(19, 27, 1);
/* oklch */ color: oklch(20.7% 0.049 123.9);

Tailwind

colors: {
  custom: {
    50: '#505747',
    500: '#131b01',
    950: '#000000',
  },
}

SCSS

$custom: #131b01;
$custom-light: #505747;
$custom-dark: #000000;

JSON

{
  "hex": "#131b01",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 1
  },
  "hsl": {
    "h": 78.462,
    "s": 92.857,
    "l": 5.49
  },
  "oklch": {
    "l": 0.20674,
    "c": 0.04886,
    "h": 123.9
  },
  "luminance": 0.00925
}

Semantic roles & 50–950 ramp

primary

#131B01

secondary

#2D1563

accent

#29FF6B

background

#F4F5F3

surface

#E7E9E5

border

#C3C5C1

text

#020300

muted

#787877

Preview Lab

Preview with #131B01

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

Preview Lab → · Contrast checker → · Palette generator →