#181C19#181C19

#181C19 is a very dark, near-neutral grey. Relative luminance 0.011; OKLCH L 22.1% C 0.008 H 153.3°. Best body text is #FFFFFF at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#181C19
RGB	rgb(24, 28, 25)
HSL	hsl(135, 8%, 10%)
HSV	hsv(135, 14%, 11%)
CMYK	cmyk(14.3%, 0%, 10.7%, 89%)
CIE-LAB	lab(9.76, -2.67, 1.44)
CIE-LCH	lch(9.76, 3.03, 151.65°)
OKLab	oklab(22.11% -0.0074 0.0038)
OKLCH	oklch(22.11% 0.008 153.3)
XYZ	xyz(0.9674, 1.0949, 1.0799)
Luminance	0.0109 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C19 #1C181B

analogous

#191C18 #181C19 #181C1B

triadic

#181C19 #19181C #1C1918

tetradic

#181C19 #18191C #1C181B #1C1B18

square

#181C19 #18191C #1C181B #1C1B18

split-complementary

#181C19 #1B181C #1C1819

monochromatic

#0E100F #0E100F #181C19 #343D36 #505E54

Accessibility & contrast

On white

17.23

#181C19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#181C19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C19

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C19	#FFFFFF	#000000	##FFFFFF
##181C19	1.00	17.23	1.22	17.23
#FFFFFF	17.23	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1B19

Deuteranopia (green-blind)

#1B1B19

Tritanopia (blue-blind)

#171C1B

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #181c19;
/* rgb */ color: rgb(24, 28, 25);
/* oklch */ color: oklch(22.1% 0.008 153.3);

Tailwind

colors: {
  custom: {
    50: '#545855',
    500: '#181c19',
    950: '#000000',
  },
}

SCSS

$custom: #181c19;
$custom-light: #545855;
$custom-dark: #000000;

JSON

{
  "hex": "#181c19",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 25
  },
  "hsl": {
    "h": 135,
    "s": 7.692,
    "l": 10.196
  },
  "oklch": {
    "l": 0.22107,
    "c": 0.00833,
    "h": 153.3
  },
  "luminance": 0.01095
}

Semantic roles & 50–950 ramp

primary

#181C19

secondary

#4C444A

accent

#77A2B1

background

#F4F5F4

surface

#E7E9E7

border

#C3C5C3

text

#020303

muted

#787878

Preview Lab

Preview with #181C19

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

Preview Lab → · Contrast checker → · Palette generator →