#0B1547#0B1547

#0B1547 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.094 H 268.7°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#0B1547
RGB	rgb(11, 21, 71)
HSL	hsl(230, 73%, 16%)
HSV	hsv(230, 85%, 28%)
CMYK	cmyk(84.5%, 70.4%, 0%, 72.2%)
CIE-LAB	lab(9.50, 16.70, -32.50)
CIE-LCH	lch(9.50, 36.53, 297.19°)
OKLab	oklab(22.64% -0.0021 -0.094)
OKLCH	oklch(22.64% 0.094 268.7)
XYZ	xyz(1.5431, 1.0622, 6.0837)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1547 #473D0B

analogous

#0B3347 #0B1547 #1F0B47

triadic

#0B1547 #470B15 #15470B

tetradic

#0B1547 #470B33 #473D0B #0B471F

square

#0B1547 #470B33 #473D0B #0B471F

split-complementary

#0B1547 #471F0B #33470B

monochromatic

#04081A #04081A #0B1547 #13257C #1B34B1

Accessibility & contrast

On white

17.32

#0B1547 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0B1547 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1547

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1547	#FFFFFF	#000000	##FFFFFF
##0B1547	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D49

Deuteranopia (green-blind)

#001846

Tritanopia (blue-blind)

#00222B

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0b1547;
/* rgb */ color: rgb(11, 21, 71);
/* oklch */ color: oklch(22.6% 0.094 268.7);

Tailwind

colors: {
  custom: {
    50: '#55527b',
    500: '#0b1547',
    950: '#000000',
  },
}

SCSS

$custom: #0b1547;
$custom-light: #55527b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1547",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 71
  },
  "hsl": {
    "h": 230,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22635,
    "c": 0.09398,
    "h": 268.7
  },
  "luminance": 0.01062
}

Semantic roles & 50–950 ramp

primary

#0B1547

secondary

#83752A

accent

#D138F0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0B1547

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

Preview Lab → · Contrast checker → · Palette generator →