#0C173A#0C173A

#0C173A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.070 H 267.3°. Best body text is #FFFFFF at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#0C173A
RGB	rgb(12, 23, 58)
HSL	hsl(226, 66%, 14%)
HSV	hsv(226, 79%, 23%)
CMYK	cmyk(79.3%, 60.3%, 0%, 77.3%)
CIE-LAB	lab(8.96, 9.53, -24.16)
CIE-LCH	lch(8.96, 25.97, 291.52°)
OKLab	oklab(21.87% -0.0033 -0.0694)
OKLCH	oklch(21.87% 0.07 267.3)
XYZ	xyz(1.2215, 0.9963, 4.1301)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C173A #3A2F0C

analogous

#0C2E3A #0C173A #180C3A

triadic

#0C173A #3A0C17 #173A0C

tetradic

#0C173A #3A0C2E #3A2F0C #0C3A18

square

#0C173A #3A0C2E #3A2F0C #0C3A18

split-complementary

#0C173A #3A180C #2E3A0C

monochromatic

#050A19 #050A19 #0C173A #162B6D #213F9F

Accessibility & contrast

On white

17.51

#0C173A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0C173A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C173A

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C173A	#FFFFFF	#000000	##FFFFFF
##0C173A	1.00	17.51	1.20	17.51
#FFFFFF	17.51	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031C3B

Deuteranopia (green-blind)

#001739

Tritanopia (blue-blind)

#001F25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0c173a;
/* rgb */ color: rgb(12, 23, 58);
/* oklch */ color: oklch(21.9% 0.070 267.3);

Tailwind

colors: {
  custom: {
    50: '#525370',
    500: '#0c173a',
    950: '#000000',
  },
}

SCSS

$custom: #0c173a;
$custom-light: #525370;
$custom-dark: #000000;

JSON

{
  "hex": "#0c173a",
  "rgb": {
    "r": 12,
    "g": 23,
    "b": 58
  },
  "hsl": {
    "h": 225.652,
    "s": 65.714,
    "l": 13.725
  },
  "oklch": {
    "l": 0.21866,
    "c": 0.0695,
    "h": 267.3
  },
  "luminance": 0.00996
}

Semantic roles & 50–950 ramp

primary

#0C173A

secondary

#76642C

accent

#C03FE9

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #0C173A

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

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