#0C182C#0C182C

#0C182C is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.0% C 0.043 H 260.1°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#0C182C
RGB	rgb(12, 24, 44)
HSL	hsl(218, 57%, 11%)
HSV	hsv(218, 73%, 17%)
CMYK	cmyk(72.7%, 45.5%, 0%, 82.7%)
CIE-LAB	lab(8.25, 2.54, -15.11)
CIE-LCH	lch(8.25, 15.32, 279.53°)
OKLab	oklab(20.98% -0.0075 -0.0428)
OKLCH	oklch(20.98% 0.043 260.1)
XYZ	xyz(0.9327, 0.9132, 2.5095)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C182C #2C200C

analogous

#0C282C #0C182C #100C2C

triadic

#0C182C #2C0C18 #182C0C

tetradic

#0C182C #2C0C28 #2C200C #0C2C10

square

#0C182C #2C0C28 #2C200C #0C2C10

split-complementary

#0C182C #2C100C #282C0C

monochromatic

#070D18 #070D18 #0C182C #19325C #264C8C

Accessibility & contrast

On white

17.76

#0C182C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0C182C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C182C

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C182C	#FFFFFF	#000000	##FFFFFF
##0C182C	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101A2D

Deuteranopia (green-blind)

#0B172C

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0c182c;
/* rgb */ color: rgb(12, 24, 44);
/* oklch */ color: oklch(21.0% 0.043 260.1);

Tailwind

colors: {
  custom: {
    50: '#4e5465',
    500: '#0c182c',
    950: '#000000',
  },
}

SCSS

$custom: #0c182c;
$custom-light: #4e5465;
$custom-dark: #000000;

JSON

{
  "hex": "#0c182c",
  "rgb": {
    "r": 12,
    "g": 24,
    "b": 44
  },
  "hsl": {
    "h": 217.5,
    "s": 57.143,
    "l": 10.98
  },
  "oklch": {
    "l": 0.20976,
    "c": 0.04347,
    "h": 260.1
  },
  "luminance": 0.00913
}

Semantic roles & 50–950 ramp

primary

#0C182C

secondary

#67512C

accent

#A747E0

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020205

muted

#78787A

Preview Lab

Preview with #0C182C

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

Preview Lab → · Contrast checker → · Palette generator →