#0B1B56#0B1B56

#0B1B56 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.109 H 266.5°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#0B1B56
RGB	rgb(11, 27, 86)
HSL	hsl(227, 77%, 19%)
HSV	hsv(227, 87%, 34%)
CMYK	cmyk(87.2%, 68.6%, 0%, 66.3%)
CIE-LAB	lab(12.78, 18.66, -37.44)
CIE-LCH	lch(12.78, 41.83, 296.48°)
OKLab	oklab(25.53% -0.0066 -0.1084)
OKLCH	oklch(25.53% 0.109 266.5)
XYZ	xyz(2.2091, 1.5266, 8.9805)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1B56 #56460B

analogous

#0B4156 #0B1B56 #210B56

triadic

#0B1B56 #560B1B #1B560B

tetradic

#0B1B56 #560B41 #56460B #0B5621

square

#0B1B56 #560B41 #56460B #0B5621

split-complementary

#0B1B56 #56210B #41560B

monochromatic

#03091B #040A20 #0B1B56 #122C8C #193DC3

Accessibility & contrast

On white

16.09

#0B1B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0B1B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1B56

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1B56	#FFFFFF	#000000	##FFFFFF
##0B1B56	1.00	16.09	1.31	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002558

Deuteranopia (green-blind)

#001E55

Tritanopia (blue-blind)

#002B35

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0b1b56;
/* rgb */ color: rgb(11, 27, 86);
/* oklch */ color: oklch(25.5% 0.109 266.5);

Tailwind

colors: {
  custom: {
    50: '#5a5786',
    500: '#0b1b56',
    950: '#000000',
  },
}

SCSS

$custom: #0b1b56;
$custom-light: #5a5786;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1b56",
  "rgb": {
    "r": 11,
    "g": 27,
    "b": 86
  },
  "hsl": {
    "h": 227.2,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25525,
    "c": 0.10858,
    "h": 266.5
  },
  "luminance": 0.01527
}

Semantic roles & 50–950 ramp

primary

#0B1B56

secondary

#917C2B

accent

#CB34F4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #0B1B56

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

Preview Lab → · Contrast checker → · Palette generator →