#0B1B47#0B1B47

#0B1B47 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.085 H 265.3°. Best body text is #FFFFFF at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#0B1B47
RGB	rgb(11, 27, 71)
HSL	hsl(224, 73%, 16%)
HSV	hsv(224, 85%, 28%)
CMYK	cmyk(84.5%, 62%, 0%, 72.2%)
CIE-LAB	lab(11.34, 12.04, -29.49)
CIE-LCH	lch(11.34, 31.85, 292.22°)
OKLab	oklab(24.01% -0.007 -0.085)
OKLCH	oklch(24.01% 0.085 265.3)
XYZ	xyz(1.6669, 1.3098, 6.1250)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1B47 #47370B

analogous

#0B3947 #0B1B47 #190B47

triadic

#0B1B47 #470B1B #1B470B

tetradic

#0B1B47 #470B39 #47370B #0B4719

square

#0B1B47 #470B39 #47370B #0B4719

split-complementary

#0B1B47 #47190B #39470B

monochromatic

#040A1A #040A1A #0B1B47 #132F7C #1B43B1

Accessibility & contrast

On white

16.64

#0B1B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#0B1B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1B47

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1B47	#FFFFFF	#000000	##FFFFFF
##0B1B47	1.00	16.64	1.26	16.64
#FFFFFF	16.64	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001C46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0b1b47;
/* rgb */ color: rgb(11, 27, 71);
/* oklch */ color: oklch(24.0% 0.085 265.3);

Tailwind

colors: {
  custom: {
    50: '#55567b',
    500: '#0b1b47',
    950: '#000000',
  },
}

SCSS

$custom: #0b1b47;
$custom-light: #55567b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1b47",
  "rgb": {
    "r": 11,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 224,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.2401,
    "c": 0.08532,
    "h": 265.3
  },
  "luminance": 0.0131
}

Semantic roles & 50–950 ramp

primary

#0B1B47

secondary

#836C2A

accent

#BF38F0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0B1B47

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

Preview Lab → · Contrast checker → · Palette generator →