#0C183F#0C183F

#0C183F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.076 H 267.1°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#0C183F
RGB	rgb(12, 24, 63)
HSL	hsl(226, 68%, 15%)
HSV	hsv(226, 81%, 25%)
CMYK	cmyk(81%, 61.9%, 0%, 75.3%)
CIE-LAB	lab(9.72, 10.97, -26.50)
CIE-LCH	lch(9.72, 28.68, 292.48°)
OKLab	oklab(22.58% -0.0038 -0.0763)
OKLCH	oklch(22.58% 0.076 267.1)
XYZ	xyz(1.3751, 1.0902, 4.8396)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C183F #3F330C

analogous

#0C323F #0C183F #190C3F

triadic

#0C183F #3F0C18 #183F0C

tetradic

#0C183F #3F0C32 #3F330C #0C3F19

square

#0C183F #3F0C32 #3F330C #0C3F19

split-complementary

#0C183F #3F190C #323F0C

monochromatic

#050A1A #050A1A #0C183F #162C72 #203FA6

Accessibility & contrast

On white

17.24

#0C183F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0C183F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C183F

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C183F	#FFFFFF	#000000	##FFFFFF
##0C183F	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D40

Deuteranopia (green-blind)

#00193E

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0c183f;
/* rgb */ color: rgb(12, 24, 63);
/* oklch */ color: oklch(22.6% 0.076 267.1);

Tailwind

colors: {
  custom: {
    50: '#535474',
    500: '#0c183f',
    950: '#000000',
  },
}

SCSS

$custom: #0c183f;
$custom-light: #535474;
$custom-dark: #000000;

JSON

{
  "hex": "#0c183f",
  "rgb": {
    "r": 12,
    "g": 24,
    "b": 63
  },
  "hsl": {
    "h": 225.882,
    "s": 68,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22578,
    "c": 0.07638,
    "h": 267.1
  },
  "luminance": 0.0109
}

Semantic roles & 50–950 ramp

primary

#0C183F

secondary

#7B682C

accent

#C23DEB

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C183F

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

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