#0B1856#0B1856

#0B1856 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.113 H 267.5°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).

Color values

HEX	#0B1856
RGB	rgb(11, 24, 86)
HSL	hsl(230, 77%, 19%)
HSV	hsv(230, 87%, 34%)
CMYK	cmyk(87.2%, 72.1%, 0%, 66.3%)
CIE-LAB	lab(11.93, 20.88, -38.83)
CIE-LCH	lch(11.93, 44.09, 298.27°)
OKLab	oklab(24.9% -0.0049 -0.1125)
OKLCH	oklch(24.9% 0.113 267.5)
XYZ	xyz(2.1438, 1.3960, 8.9588)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1856 #56490B

analogous

#0B3E56 #0B1856 #240B56

triadic

#0B1856 #560B18 #18560B

tetradic

#0B1856 #560B3E #56490B #0B5624

square

#0B1856 #560B3E #56490B #0B5624

split-complementary

#0B1856 #56240B #3E560B

monochromatic

#03081B #040920 #0B1856 #12278C #1936C3

Accessibility & contrast

On white

16.42

#0B1856 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#0B1856 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1856

16.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1856	#FFFFFF	#000000	##FFFFFF
##0B1856	1.00	16.42	1.28	16.42
#FFFFFF	16.42	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002358

Deuteranopia (green-blind)

#001C55

Tritanopia (blue-blind)

#002934

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0b1856;
/* rgb */ color: rgb(11, 24, 86);
/* oklch */ color: oklch(24.9% 0.113 267.5);

Tailwind

colors: {
  custom: {
    50: '#5a5486',
    500: '#0b1856',
    950: '#000000',
  },
}

SCSS

$custom: #0b1856;
$custom-light: #5a5486;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1856",
  "rgb": {
    "r": 11,
    "g": 24,
    "b": 86
  },
  "hsl": {
    "h": 229.6,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24904,
    "c": 0.11256,
    "h": 267.5
  },
  "luminance": 0.01396
}

Semantic roles & 50–950 ramp

primary

#0B1856

secondary

#91802B

accent

#D334F4

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #0B1856

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

Preview Lab → · Contrast checker → · Palette generator →