#0C183E#0C183E

#0C183E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.5% C 0.075 H 267.0°. Best body text is #FFFFFF at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#0C183E
RGB	rgb(12, 24, 62)
HSL	hsl(226, 68%, 15%)
HSV	hsv(226, 81%, 24%)
CMYK	cmyk(80.6%, 61.3%, 0%, 75.7%)
CIE-LAB	lab(9.63, 10.52, -25.93)
CIE-LCH	lch(9.63, 27.98, 292.09°)
OKLab	oklab(22.48% -0.0039 -0.0746)
OKLCH	oklch(22.48% 0.075 267)
XYZ	xyz(1.3475, 1.0791, 4.6938)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C183E #3E320C

analogous

#0C313E #0C183E #190C3E

triadic

#0C183E #3E0C18 #183E0C

tetradic

#0C183E #3E0C31 #3E320C #0C3E19

square

#0C183E #3E0C31 #3E320C #0C3E19

split-complementary

#0C183E #3E190C #313E0C

monochromatic

#050A1A #050A1A #0C183E #162C71 #2040A5

Accessibility & contrast

On white

17.27

#0C183E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0C183E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C183E

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C183E	#FFFFFF	#000000	##FFFFFF
##0C183E	1.00	17.27	1.22	17.27
#FFFFFF	17.27	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011D3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0c183e;
/* rgb */ color: rgb(12, 24, 62);
/* oklch */ color: oklch(22.5% 0.075 267.0);

Tailwind

colors: {
  custom: {
    50: '#535474',
    500: '#0c183e',
    950: '#000000',
  },
}

SCSS

$custom: #0c183e;
$custom-light: #535474;
$custom-dark: #000000;

JSON

{
  "hex": "#0c183e",
  "rgb": {
    "r": 12,
    "g": 24,
    "b": 62
  },
  "hsl": {
    "h": 225.6,
    "s": 67.568,
    "l": 14.51
  },
  "oklch": {
    "l": 0.22484,
    "c": 0.07471,
    "h": 267
  },
  "luminance": 0.01079
}

Semantic roles & 50–950 ramp

primary

#0C183E

secondary

#7A672C

accent

#C13DEA

background

#F4F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C183E

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

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