#0B0B56#0B0B56

#0B0B56 is a very dark, vivid blue. Relative luminance 0.010; OKLCH L 22.7% C 0.127 H 270.2°. Best body text is #FFFFFF at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#0B0B56
RGB	rgb(11, 11, 86)
HSL	hsl(240, 77%, 19%)
HSV	hsv(240, 87%, 34%)
CMYK	cmyk(87.2%, 87.2%, 0%, 66.3%)
CIE-LAB	lab(8.84, 29.49, -43.93)
CIE-LCH	lch(8.84, 52.91, 303.87°)
OKLab	oklab(22.7% 0.0005 -0.1272)
OKLCH	oklch(22.7% 0.127 270.2)
XYZ	xyz(1.9368, 0.9822, 8.8898)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0B56 #56560B

analogous

#0B3156 #0B0B56 #310B56

triadic

#0B0B56 #560B0B #0B560B

tetradic

#0B0B56 #560B31 #56560B #0B5631

square

#0B0B56 #560B31 #56560B #0B5631

split-complementary

#0B0B56 #56310B #31560B

monochromatic

#03031B #040420 #0B0B56 #12128C #1919C3

Accessibility & contrast

On white

17.55

#0B0B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0B0B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0B56

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0B56	#FFFFFF	#000000	##FFFFFF
##0B0B56	1.00	17.55	1.20	17.55
#FFFFFF	17.55	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D58

Deuteranopia (green-blind)

#001555

Tritanopia (blue-blind)

#002331

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0b0b56;
/* rgb */ color: rgb(11, 11, 86);
/* oklch */ color: oklch(22.7% 0.127 270.2);

Tailwind

colors: {
  custom: {
    50: '#5b4c87',
    500: '#0b0b56',
    950: '#000000',
  },
}

SCSS

$custom: #0b0b56;
$custom-light: #5b4c87;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0b56",
  "rgb": {
    "r": 11,
    "g": 11,
    "b": 86
  },
  "hsl": {
    "h": 240,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.22695,
    "c": 0.12721,
    "h": 270.2
  },
  "luminance": 0.00982
}

Semantic roles & 50–950 ramp

primary

#0B0B56

secondary

#91912B

accent

#F434F4

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #0B0B56

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

Preview Lab → · Contrast checker → · Palette generator →