#0B1C4D#0B1C4D

#0B1C4D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.093 H 265.4°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#0B1C4D
RGB	rgb(11, 28, 77)
HSL	hsl(225, 75%, 17%)
HSV	hsv(225, 86%, 30%)
CMYK	cmyk(85.7%, 63.6%, 0%, 69.8%)
CIE-LAB	lab(12.20, 13.95, -32.24)
CIE-LCH	lch(12.20, 35.13, 293.39°)
OKLab	oklab(24.83% -0.0075 -0.0931)
OKLCH	oklch(24.83% 0.093 265.4)
XYZ	xyz(1.8923, 1.4373, 7.1974)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.49

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1C4D #4D3C0B

analogous

#0B3D4D #0B1C4D #1B0B4D

triadic

#0B1C4D #4D0B1C #1C4D0B

tetradic

#0B1C4D #4D0B3D #4D3C0B #0B4D1B

square

#0B1C4D #4D0B3D #4D3C0B #0B4D1B

split-complementary

#0B1C4D #4D1B0B #3D4D0B

monochromatic

#040A1B #040A1B #0B1C4D #132F83 #1A43B8

Accessibility & contrast

On white

16.31

#0B1C4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0B1C4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1C4D

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1C4D	#FFFFFF	#000000	##FFFFFF
##0B1C4D	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234F

Deuteranopia (green-blind)

#001D4C

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0b1c4d;
/* rgb */ color: rgb(11, 28, 77);
/* oklch */ color: oklch(24.8% 0.093 265.4);

Tailwind

colors: {
  custom: {
    50: '#57577f',
    500: '#0b1c4d',
    950: '#000000',
  },
}

SCSS

$custom: #0b1c4d;
$custom-light: #57577f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1c4d",
  "rgb": {
    "r": 11,
    "g": 28,
    "b": 77
  },
  "hsl": {
    "h": 224.545,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24828,
    "c": 0.0934,
    "h": 265.4
  },
  "luminance": 0.01437
}

Semantic roles & 50–950 ramp

primary

#0B1C4D

secondary

#89712B

accent

#C136F2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #0B1C4D

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

Preview Lab → · Contrast checker → · Palette generator →