#0B0347#0B0347

#0B0347 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.4% C 0.116 H 273.7°. Best body text is #FFFFFF at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#0B0347
RGB	rgb(11, 3, 71)
HSL	hsl(247, 92%, 15%)
HSV	hsv(247, 96%, 28%)
CMYK	cmyk(84.5%, 95.8%, 0%, 72.2%)
CIE-LAB	lab(5.34, 27.82, -39.34)
CIE-LCH	lch(5.34, 48.18, 305.27°)
OKLab	oklab(19.42% 0.0075 -0.1155)
OKLCH	oklch(19.42% 0.116 273.7)
XYZ	xyz(1.3075, 0.5911, 6.0052)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.15

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0347 #3F4703

analogous

#031D47 #0B0347 #2D0347

triadic

#0B0347 #470B03 #03470B

tetradic

#0B0347 #47031D #3F4703 #03472D

square

#0B0347 #47031D #3F4703 #03472D

split-complementary

#0B0347 #472D03 #1D4703

monochromatic

#05011D #05011D #0B0347 #140582 #1D08BC

Accessibility & contrast

On white

18.78

#0B0347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0B0347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0347

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0347	#FFFFFF	#000000	##FFFFFF
##0B0347	1.00	18.78	1.12	18.78
#FFFFFF	18.78	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001549

Deuteranopia (green-blind)

#000E46

Tritanopia (blue-blind)

#001926

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0b0347;
/* rgb */ color: rgb(11, 3, 71);
/* oklch */ color: oklch(19.4% 0.116 273.7);

Tailwind

colors: {
  custom: {
    50: '#57467b',
    500: '#0b0347',
    950: '#000000',
  },
}

SCSS

$custom: #0b0347;
$custom-light: #57467b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0347",
  "rgb": {
    "r": 11,
    "g": 3,
    "b": 71
  },
  "hsl": {
    "h": 247.059,
    "s": 91.892,
    "l": 14.51
  },
  "oklch": {
    "l": 0.19421,
    "c": 0.11573,
    "h": 273.7
  },
  "luminance": 0.00591
}

Semantic roles & 50–950 ramp

primary

#0B0347

secondary

#7C881E

accent

#FF29E6

background

#F5F4F7

surface

#E9E6EE

border

#C5C2C9

text

#040009

muted

#79777B

Preview Lab

Preview with #0B0347

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

Preview Lab → · Contrast checker → · Palette generator →