#0C173D#0C173D

#0C173D is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.1% C 0.075 H 267.7°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#0C173D
RGB	rgb(12, 23, 61)
HSL	hsl(227, 67%, 14%)
HSV	hsv(227, 80%, 24%)
CMYK	cmyk(80.3%, 62.3%, 0%, 76.1%)
CIE-LAB	lab(9.22, 10.87, -25.89)
CIE-LCH	lch(9.22, 28.08, 292.77°)
OKLab	oklab(22.15% -0.003 -0.0745)
OKLCH	oklch(22.15% 0.075 267.7)
XYZ	xyz(1.3000, 1.0277, 4.5438)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C173D #3D320C

analogous

#0C303D #0C173D #1A0C3D

triadic

#0C173D #3D0C17 #173D0C

tetradic

#0C173D #3D0C30 #3D320C #0C3D1A

square

#0C173D #3D0C30 #3D320C #0C3D1A

split-complementary

#0C173D #3D1A0C #303D0C

monochromatic

#050A1A #050A1A #0C173D #162A70 #203EA3

Accessibility & contrast

On white

17.42

#0C173D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0C173D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C173D

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C173D	#FFFFFF	#000000	##FFFFFF
##0C173D	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C3E

Deuteranopia (green-blind)

#00183C

Tritanopia (blue-blind)

#002027

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c173d;
/* rgb */ color: rgb(12, 23, 61);
/* oklch */ color: oklch(22.1% 0.075 267.7);

Tailwind

colors: {
  custom: {
    50: '#535373',
    500: '#0c173d',
    950: '#000000',
  },
}

SCSS

$custom: #0c173d;
$custom-light: #535373;
$custom-dark: #000000;

JSON

{
  "hex": "#0c173d",
  "rgb": {
    "r": 12,
    "g": 23,
    "b": 61
  },
  "hsl": {
    "h": 226.531,
    "s": 67.123,
    "l": 14.314
  },
  "oklch": {
    "l": 0.22145,
    "c": 0.07456,
    "h": 267.7
  },
  "luminance": 0.01028
}

Semantic roles & 50–950 ramp

primary

#0C173D

secondary

#79682C

accent

#C33EEA

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C173D

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

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