#181C18#181C18

#181C18 is a very dark, near-neutral grey. Relative luminance 0.011; OKLCH L 22.1% C 0.010 H 145.2°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#181C18
RGB	rgb(24, 28, 24)
HSL	hsl(120, 8%, 10%)
HSV	hsv(120, 14%, 11%)
CMYK	cmyk(14.3%, 0%, 14.3%, 89%)
CIE-LAB	lab(9.72, -2.92, 2.14)
CIE-LCH	lch(9.72, 3.62, 143.83°)
OKLab	oklab(22.07% -0.008 0.0056)
OKLCH	oklch(22.07% 0.01 145.2)
XYZ	xyz(0.9568, 1.0906, 1.0241)
Luminance	0.0109 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C18 #1C181C

analogous

#1A1C18 #181C18 #181C1A

triadic

#181C18 #18181C #1C1818

tetradic

#181C18 #181A1C #1C181C #1C1A18

square

#181C18 #181A1C #1C181C #1C1A18

split-complementary

#181C18 #1A181C #1C181A

monochromatic

#0E100E #0E100E #181C18 #343D34 #505E50

Accessibility & contrast

On white

17.24

#181C18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#181C18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C18

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C18	#FFFFFF	#000000	##FFFFFF
##181C18	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1B18

Deuteranopia (green-blind)

#1B1B18

Tritanopia (blue-blind)

#181C1B

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #181c18;
/* rgb */ color: rgb(24, 28, 24);
/* oklch */ color: oklch(22.1% 0.010 145.2);

Tailwind

colors: {
  custom: {
    50: '#545854',
    500: '#181c18',
    950: '#000000',
  },
}

SCSS

$custom: #181c18;
$custom-light: #545854;
$custom-dark: #000000;

JSON

{
  "hex": "#181c18",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 24
  },
  "hsl": {
    "h": 120,
    "s": 7.692,
    "l": 10.196
  },
  "oklch": {
    "l": 0.22069,
    "c": 0.00975,
    "h": 145.2
  },
  "luminance": 0.01091
}

Semantic roles & 50–950 ramp

primary

#181C18

secondary

#4C444C

accent

#77B1B1

background

#F4F5F4

surface

#E7E9E7

border

#C3C5C3

text

#020302

muted

#787878

Preview Lab

Preview with #181C18

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

Preview Lab → · Contrast checker → · Palette generator →