#0B1F47#0B1F47

#0B1F47 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 25.0% C 0.079 H 262.3°. Best body text is #FFFFFF at 16.14:1 contrast (WCAG AA passes).

Color values

HEX	#0B1F47
RGB	rgb(11, 31, 71)
HSL	hsl(220, 73%, 16%)
HSV	hsv(220, 85%, 28%)
CMYK	cmyk(84.5%, 56.3%, 0%, 72.2%)
CIE-LAB	lab(12.65, 8.93, -27.38)
CIE-LCH	lch(12.65, 28.80, 288.07°)
OKLab	oklab(25% -0.0107 -0.0787)
OKLCH	oklch(25% 0.079 262.3)
XYZ	xyz(1.7649, 1.5059, 6.1577)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1F47 #47330B

analogous

#0B3D47 #0B1F47 #150B47

triadic

#0B1F47 #470B1F #1F470B

tetradic

#0B1F47 #470B3D #47330B #0B4715

square

#0B1F47 #470B3D #47330B #0B4715

split-complementary

#0B1F47 #47150B #3D470B

monochromatic

#040C1A #040C1A #0B1F47 #13367C #1B4DB1

Accessibility & contrast

On white

16.14

#0B1F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0B1F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1F47

16.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1F47	#FFFFFF	#000000	##FFFFFF
##0B1F47	1.00	16.14	1.30	16.14
#FFFFFF	16.14	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072448

Deuteranopia (green-blind)

#001E46

Tritanopia (blue-blind)

#00292F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0b1f47;
/* rgb */ color: rgb(11, 31, 71);
/* oklch */ color: oklch(25.0% 0.079 262.3);

Tailwind

colors: {
  custom: {
    50: '#555a7a',
    500: '#0b1f47',
    950: '#000000',
  },
}

SCSS

$custom: #0b1f47;
$custom-light: #555a7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1f47",
  "rgb": {
    "r": 11,
    "g": 31,
    "b": 71
  },
  "hsl": {
    "h": 220,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.24998,
    "c": 0.07947,
    "h": 262.3
  },
  "luminance": 0.01506
}

Semantic roles & 50–950 ramp

primary

#0B1F47

secondary

#83662A

accent

#B338F0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #0B1F47

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

Preview Lab → · Contrast checker → · Palette generator →