#0C172D#0C172D

#0C172D is a very dark, muted blue. Relative luminance 0.009; OKLCH L 20.8% C 0.047 H 262.9°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#0C172D
RGB	rgb(12, 23, 45)
HSL	hsl(220, 58%, 11%)
HSV	hsv(220, 73%, 18%)
CMYK	cmyk(73.3%, 48.9%, 0%, 82.4%)
CIE-LAB	lab(7.95, 3.76, -16.32)
CIE-LCH	lch(7.95, 16.75, 282.98°)
OKLab	oklab(20.77% -0.0058 -0.0464)
OKLCH	oklch(20.77% 0.047 262.9)
XYZ	xyz(0.9315, 0.8803, 2.6029)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C172D #2D220C

analogous

#0C272D #0C172D #110C2D

triadic

#0C172D #2D0C17 #172D0C

tetradic

#0C172D #2D0C27 #2D220C #0C2D11

square

#0C172D #2D0C27 #2D220C #0C2D11

split-complementary

#0C172D #2D110C #272D0C

monochromatic

#060C18 #060C18 #0C172D #19305D #26488E

Accessibility & contrast

On white

17.86

#0C172D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0C172D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C172D

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C172D	#FFFFFF	#000000	##FFFFFF
##0C172D	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D192E

Deuteranopia (green-blind)

#09162D

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0c172d;
/* rgb */ color: rgb(12, 23, 45);
/* oklch */ color: oklch(20.8% 0.047 262.9);

Tailwind

colors: {
  custom: {
    50: '#4e5366',
    500: '#0c172d',
    950: '#000000',
  },
}

SCSS

$custom: #0c172d;
$custom-light: #4e5366;
$custom-dark: #000000;

JSON

{
  "hex": "#0c172d",
  "rgb": {
    "r": 12,
    "g": 23,
    "b": 45
  },
  "hsl": {
    "h": 220,
    "s": 57.895,
    "l": 11.176
  },
  "oklch": {
    "l": 0.2077,
    "c": 0.04673,
    "h": 262.9
  },
  "luminance": 0.0088
}

Semantic roles & 50–950 ramp

primary

#0C172D

secondary

#69542C

accent

#AE47E1

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0C172D

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

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