#0B1C4A#0B1C4A

#0B1C4A is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.089 H 265.1°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).

Color values

HEX	#0B1C4A
RGB	rgb(11, 28, 74)
HSL	hsl(224, 74%, 17%)
HSV	hsv(224, 85%, 29%)
CMYK	cmyk(85.1%, 62.2%, 0%, 71%)
CIE-LAB	lab(11.93, 12.61, -30.62)
CIE-LCH	lch(11.93, 33.11, 292.39°)
OKLab	oklab(24.54% -0.0076 -0.0883)
OKLCH	oklch(24.54% 0.089 265.1)
XYZ	xyz(1.7889, 1.3959, 6.6524)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1C4A #4A390B

analogous

#0B3C4A #0B1C4A #1A0B4A

triadic

#0B1C4A #4A0B1C #1C4A0B

tetradic

#0B1C4A #4A0B3C #4A390B #0B4A1A

square

#0B1C4A #4A0B3C #4A390B #0B4A1A

split-complementary

#0B1C4A #4A1A0B #3C4A0B

monochromatic

#040A1B #040A1B #0B1C4A #13307F #1B44B5

Accessibility & contrast

On white

16.42

#0B1C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#0B1C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1C4A

16.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1C4A	#FFFFFF	#000000	##FFFFFF
##0B1C4A	1.00	16.42	1.28	16.42
#FFFFFF	16.42	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224C

Deuteranopia (green-blind)

#001D49

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0b1c4a;
/* rgb */ color: rgb(11, 28, 74);
/* oklch */ color: oklch(24.5% 0.089 265.1);

Tailwind

colors: {
  custom: {
    50: '#56577d',
    500: '#0b1c4a',
    950: '#000000',
  },
}

SCSS

$custom: #0b1c4a;
$custom-light: #56577d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1c4a",
  "rgb": {
    "r": 11,
    "g": 28,
    "b": 74
  },
  "hsl": {
    "h": 223.81,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.24537,
    "c": 0.08866,
    "h": 265.1
  },
  "luminance": 0.01396
}

Semantic roles & 50–950 ramp

primary

#0B1C4A

secondary

#866E2B

accent

#BF37F1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0B1C4A

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

Preview Lab → · Contrast checker → · Palette generator →