#0C183D#0C183D

#0C183D is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.4% C 0.073 H 266.8°. Best body text is #FFFFFF at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#0C183D
RGB	rgb(12, 24, 61)
HSL	hsl(225, 67%, 14%)
HSV	hsv(225, 80%, 24%)
CMYK	cmyk(80.3%, 60.7%, 0%, 76.1%)
CIE-LAB	lab(9.55, 10.08, -25.36)
CIE-LCH	lch(9.55, 27.29, 291.67°)
OKLab	oklab(22.39% -0.004 -0.0729)
OKLCH	oklch(22.39% 0.073 266.8)
XYZ	xyz(1.3203, 1.0682, 4.5506)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C183D #3D310C

analogous

#0C313D #0C183D #190C3D

triadic

#0C183D #3D0C18 #183D0C

tetradic

#0C183D #3D0C31 #3D310C #0C3D19

square

#0C183D #3D0C31 #3D310C #0C3D19

split-complementary

#0C183D #3D190C #313D0C

monochromatic

#050A1A #050A1A #0C183D #162C70 #2040A3

Accessibility & contrast

On white

17.30

#0C183D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0C183D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C183D

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C183D	#FFFFFF	#000000	##FFFFFF
##0C183D	1.00	17.30	1.21	17.30
#FFFFFF	17.30	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021D3E

Deuteranopia (green-blind)

#00183C

Tritanopia (blue-blind)

#002127

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0c183d;
/* rgb */ color: rgb(12, 24, 61);
/* oklch */ color: oklch(22.4% 0.073 266.8);

Tailwind

colors: {
  custom: {
    50: '#525473',
    500: '#0c183d',
    950: '#000000',
  },
}

SCSS

$custom: #0c183d;
$custom-light: #525473;
$custom-dark: #000000;

JSON

{
  "hex": "#0c183d",
  "rgb": {
    "r": 12,
    "g": 24,
    "b": 61
  },
  "hsl": {
    "h": 225.306,
    "s": 67.123,
    "l": 14.314
  },
  "oklch": {
    "l": 0.22391,
    "c": 0.07304,
    "h": 266.8
  },
  "luminance": 0.01068
}

Semantic roles & 50–950 ramp

primary

#0C183D

secondary

#79662C

accent

#C03EEA

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C183D

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

Preview Lab → · Contrast checker → · Palette generator →