#0B184A#0B184A

#0B184A is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.6% C 0.094 H 267.3°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#0B184A
RGB	rgb(11, 24, 74)
HSL	hsl(228, 74%, 17%)
HSV	hsv(228, 85%, 29%)
CMYK	cmyk(85.1%, 67.6%, 0%, 71%)
CIE-LAB	lab(10.69, 15.70, -32.63)
CIE-LCH	lch(10.69, 36.21, 295.70°)
OKLab	oklab(23.61% -0.0044 -0.0943)
OKLCH	oklch(23.61% 0.094 267.3)
XYZ	xyz(1.7002, 1.2186, 6.6228)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B184A #4A3D0B

analogous

#0B384A #0B184A #1E0B4A

triadic

#0B184A #4A0B18 #184A0B

tetradic

#0B184A #4A0B38 #4A3D0B #0B4A1E

square

#0B184A #4A0B38 #4A3D0B #0B4A1E

split-complementary

#0B184A #4A1E0B #384A0B

monochromatic

#04091B #04091B #0B184A #13297F #1B3BB5

Accessibility & contrast

On white

16.88

#0B184A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#0B184A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B184A

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B184A	#FFFFFF	#000000	##FFFFFF
##0B184A	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204C

Deuteranopia (green-blind)

#001A49

Tritanopia (blue-blind)

#00252E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0b184a;
/* rgb */ color: rgb(11, 24, 74);
/* oklch */ color: oklch(23.6% 0.094 267.3);

Tailwind

colors: {
  custom: {
    50: '#56547d',
    500: '#0b184a',
    950: '#000000',
  },
}

SCSS

$custom: #0b184a;
$custom-light: #56547d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b184a",
  "rgb": {
    "r": 11,
    "g": 24,
    "b": 74
  },
  "hsl": {
    "h": 227.619,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.23612,
    "c": 0.09441,
    "h": 267.3
  },
  "luminance": 0.01219
}

Semantic roles & 50–950 ramp

primary

#0B184A

secondary

#86732B

accent

#CA37F1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#03020A

muted

#78787C

Preview Lab

Preview with #0B184A

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

Preview Lab → · Contrast checker → · Palette generator →