#0C183C#0C183C

#0C183C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.3% C 0.071 H 266.7°. Best body text is #FFFFFF at 17.33:1 contrast (WCAG AA passes).

Color values

HEX	#0C183C
RGB	rgb(12, 24, 60)
HSL	hsl(225, 67%, 14%)
HSV	hsv(225, 80%, 24%)
CMYK	cmyk(80%, 60%, 0%, 76.5%)
CIE-LAB	lab(9.46, 9.63, -24.78)
CIE-LCH	lch(9.46, 26.59, 291.23°)
OKLab	oklab(22.3% -0.0041 -0.0712)
OKLCH	oklch(22.3% 0.071 266.7)
XYZ	xyz(1.2936, 1.0575, 4.4100)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C183C #3C300C

analogous

#0C303C #0C183C #180C3C

triadic

#0C183C #3C0C18 #183C0C

tetradic

#0C183C #3C0C30 #3C300C #0C3C18

square

#0C183C #3C0C30 #3C300C #0C3C18

split-complementary

#0C183C #3C180C #303C0C

monochromatic

#050A1A #050A1A #0C183C #162C6F #2041A2

Accessibility & contrast

On white

17.33

#0C183C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0C183C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C183C

17.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C183C	#FFFFFF	#000000	##FFFFFF
##0C183C	1.00	17.33	1.21	17.33
#FFFFFF	17.33	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031D3D

Deuteranopia (green-blind)

#00183B

Tritanopia (blue-blind)

#002127

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c183c;
/* rgb */ color: rgb(12, 24, 60);
/* oklch */ color: oklch(22.3% 0.071 266.7);

Tailwind

colors: {
  custom: {
    50: '#525472',
    500: '#0c183c',
    950: '#000000',
  },
}

SCSS

$custom: #0c183c;
$custom-light: #525472;
$custom-dark: #000000;

JSON

{
  "hex": "#0c183c",
  "rgb": {
    "r": 12,
    "g": 24,
    "b": 60
  },
  "hsl": {
    "h": 225,
    "s": 66.667,
    "l": 14.118
  },
  "oklch": {
    "l": 0.223,
    "c": 0.07135,
    "h": 266.7
  },
  "luminance": 0.01058
}

Semantic roles & 50–950 ramp

primary

#0C183C

secondary

#78652C

accent

#BF3EEA

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #0C183C

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

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