#0B112A#0B112A

#0B112A is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.8% C 0.051 H 270.6°. Best body text is #FFFFFF at 18.62:1 contrast (WCAG AA passes).

Color values

HEX	#0B112A
RGB	rgb(11, 17, 42)
HSL	hsl(228, 58%, 10%)
HSV	hsv(228, 74%, 16%)
CMYK	cmyk(73.8%, 59.5%, 0%, 83.5%)
CIE-LAB	lab(5.77, 6.09, -17.53)
CIE-LCH	lch(5.77, 18.56, 289.15°)
OKLab	oklab(18.82% 0.0006 -0.0513)
OKLCH	oklch(18.82% 0.051 270.6)
XYZ	xyz(0.7562, 0.6392, 2.2736)
Luminance	0.0064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B112A #2A240B

analogous

#0B202A #0B112A #140B2A

triadic

#0B112A #2A0B11 #112A0B

tetradic

#0B112A #2A0B20 #2A240B #0B2A14

square

#0B112A #2A0B20 #2A240B #0B2A14

split-complementary

#0B112A #2A140B #202A0B

monochromatic

#060A18 #060A18 #0B112A #18255A #24388B

Accessibility & contrast

On white

18.62

#0B112A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0B112A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B112A

18.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B112A	#FFFFFF	#000000	##FFFFFF
##0B112A	1.00	18.62	1.13	18.62
#FFFFFF	18.62	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05142B

Deuteranopia (green-blind)

#031129

Tritanopia (blue-blind)

#00171B

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0b112a;
/* rgb */ color: rgb(11, 17, 42);
/* oklch */ color: oklch(18.8% 0.051 270.6);

Tailwind

colors: {
  custom: {
    50: '#4d4f63',
    500: '#0b112a',
    950: '#000000',
  },
}

SCSS

$custom: #0b112a;
$custom-light: #4d4f63;
$custom-dark: #000000;

JSON

{
  "hex": "#0b112a",
  "rgb": {
    "r": 11,
    "g": 17,
    "b": 42
  },
  "hsl": {
    "h": 228.387,
    "s": 58.491,
    "l": 10.392
  },
  "oklch": {
    "l": 0.18818,
    "c": 0.0513,
    "h": 270.6
  },
  "luminance": 0.00639
}

Semantic roles & 50–950 ramp

primary

#0B112A

secondary

#665B2B

accent

#C446E2

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #0B112A

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

Preview Lab → · Contrast checker → · Palette generator →