#0C173B#0C173B

#0C173B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.071 H 267.4°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#0C173B
RGB	rgb(12, 23, 59)
HSL	hsl(226, 66%, 14%)
HSV	hsv(226, 80%, 23%)
CMYK	cmyk(79.7%, 61%, 0%, 76.9%)
CIE-LAB	lab(9.05, 9.97, -24.74)
CIE-LCH	lch(9.05, 26.68, 291.96°)
OKLab	oklab(21.96% -0.0032 -0.0711)
OKLCH	oklch(21.96% 0.071 267.4)
XYZ	xyz(1.2472, 1.0066, 4.2654)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C173B #3B300C

analogous

#0C2F3B #0C173B #190C3B

triadic

#0C173B #3B0C17 #173B0C

tetradic

#0C173B #3B0C2F #3B300C #0C3B19

square

#0C173B #3B0C2F #3B300C #0C3B19

split-complementary

#0C173B #3B190C #2F3B0C

monochromatic

#050A19 #050A19 #0C173B #162B6E #213FA1

Accessibility & contrast

On white

17.48

#0C173B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0C173B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C173B

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C173B	#FFFFFF	#000000	##FFFFFF
##0C173B	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021C3C

Deuteranopia (green-blind)

#00183A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c173b;
/* rgb */ color: rgb(12, 23, 59);
/* oklch */ color: oklch(22.0% 0.071 267.4);

Tailwind

colors: {
  custom: {
    50: '#525371',
    500: '#0c173b',
    950: '#000000',
  },
}

SCSS

$custom: #0c173b;
$custom-light: #525371;
$custom-dark: #000000;

JSON

{
  "hex": "#0c173b",
  "rgb": {
    "r": 12,
    "g": 23,
    "b": 59
  },
  "hsl": {
    "h": 225.957,
    "s": 66.197,
    "l": 13.922
  },
  "oklch": {
    "l": 0.21958,
    "c": 0.0712,
    "h": 267.4
  },
  "luminance": 0.01007
}

Semantic roles & 50–950 ramp

primary

#0C173B

secondary

#77652C

accent

#C13FE9

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #0C173B

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

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