#12181C#12181C

#12181C is a very dark, near-neutral cyan. Relative luminance 0.009; OKLCH L 20.5% C 0.012 H 237.4°. Best body text is #FFFFFF at 17.90:1 contrast (WCAG AA passes).

Color values

HEX	#12181C
RGB	rgb(18, 24, 28)
HSL	hsl(204, 22%, 9%)
HSV	hsv(204, 36%, 11%)
CMYK	cmyk(35.7%, 14.3%, 0%, 89%)
CIE-LAB	lab(7.82, -1.52, -3.74)
CIE-LCH	lch(7.82, 4.03, 247.79°)
OKLab	oklab(20.47% -0.0065 -0.0102)
OKLCH	oklch(20.47% 0.012 237.4)
XYZ	xyz(0.7856, 0.8657, 1.2241)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12181C #1C1612

analogous

#121C1B #12181C #12131C

triadic

#12181C #1C1218 #181C12

tetradic

#12181C #1B121C #1C1612 #131C12

square

#12181C #1B121C #1C1612 #131C12

split-complementary

#12181C #1C1213 #1C1B12

monochromatic

#0C1013 #0C1013 #12181C #2A3841 #425867

Accessibility & contrast

On white

17.90

#12181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#12181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12181C

17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12181C	#FFFFFF	#000000	##FFFFFF
##12181C	1.00	17.90	1.17	17.90
#FFFFFF	17.90	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16181C

Deuteranopia (green-blind)

#15171C

Tritanopia (blue-blind)

#0F1919

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #12181c;
/* rgb */ color: rgb(18, 24, 28);
/* oklch */ color: oklch(20.5% 0.012 237.4);

Tailwind

colors: {
  custom: {
    50: '#4f5458',
    500: '#12181c',
    950: '#000000',
  },
}

SCSS

$custom: #12181c;
$custom-light: #4f5458;
$custom-dark: #000000;

JSON

{
  "hex": "#12181c",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 204,
    "s": 21.739,
    "l": 9.02
  },
  "oklch": {
    "l": 0.2047,
    "c": 0.0121,
    "h": 237.4
  },
  "luminance": 0.00866
}

Semantic roles & 50–950 ramp

primary

#12181C

secondary

#4F433A

accent

#8B6ABE

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#020203

muted

#787878

Preview Lab

Preview with #12181C

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

Preview Lab → · Contrast checker → · Palette generator →