#0B1744#0B1744

#0B1744 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.086 H 267.5°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).

Color values

HEX	#0B1744
RGB	rgb(11, 23, 68)
HSL	hsl(227, 72%, 15%)
HSV	hsv(227, 84%, 27%)
CMYK	cmyk(83.8%, 66.2%, 0%, 73.3%)
CIE-LAB	lab(9.81, 13.83, -29.89)
CIE-LCH	lch(9.81, 32.93, 294.83°)
OKLab	oklab(22.77% -0.0037 -0.0863)
OKLCH	oklch(22.77% 0.086 267.5)
XYZ	xyz(1.4874, 1.1011, 5.6019)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1744 #44380B

analogous

#0B3344 #0B1744 #1B0B44

triadic

#0B1744 #440B17 #17440B

tetradic

#0B1744 #440B33 #44380B #0B441B

square

#0B1744 #440B33 #44380B #0B441B

split-complementary

#0B1744 #441B0B #33440B

monochromatic

#04091A #04091A #0B1744 #142979 #1C3BAD

Accessibility & contrast

On white

17.21

#0B1744 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0B1744 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1744

17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1744	#FFFFFF	#000000	##FFFFFF
##0B1744	1.00	17.21	1.22	17.21
#FFFFFF	17.21	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E46

Deuteranopia (green-blind)

#001943

Tritanopia (blue-blind)

#00222A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0b1744;
/* rgb */ color: rgb(11, 23, 68);
/* oklch */ color: oklch(22.8% 0.086 267.5);

Tailwind

colors: {
  custom: {
    50: '#545378',
    500: '#0b1744',
    950: '#000000',
  },
}

SCSS

$custom: #0b1744;
$custom-light: #545378;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1744",
  "rgb": {
    "r": 11,
    "g": 23,
    "b": 68
  },
  "hsl": {
    "h": 227.368,
    "s": 72.152,
    "l": 15.49
  },
  "oklch": {
    "l": 0.22771,
    "c": 0.08637,
    "h": 267.5
  },
  "luminance": 0.01101
}

Semantic roles & 50–950 ramp

primary

#0B1744

secondary

#816E2A

accent

#C939EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0B1744

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

Preview Lab → · Contrast checker → · Palette generator →