#0B0B48#0B0B48

#0B0B48 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.108 H 272.0°. Best body text is #FFFFFF at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#0B0B48
RGB	rgb(11, 11, 72)
HSL	hsl(240, 73%, 16%)
HSV	hsv(240, 85%, 28%)
CMYK	cmyk(84.7%, 84.7%, 0%, 71.8%)
CIE-LAB	lab(7.03, 24.08, -37.26)
CIE-LCH	lch(7.03, 44.36, 302.88°)
OKLab	oklab(20.86% 0.0037 -0.1081)
OKLCH	oklch(20.86% 0.108 272)
XYZ	xyz(1.4270, 0.7782, 6.2046)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0B48 #48480B

analogous

#0B2A48 #0B0B48 #2A0B48

triadic

#0B0B48 #480B0B #0B480B

tetradic

#0B0B48 #480B2A #48480B #0B482A

square

#0B0B48 #480B2A #48480B #0B482A

split-complementary

#0B0B48 #482A0B #2A480B

monochromatic

#04041B #04041B #0B0B48 #13137D #1B1BB2

Accessibility & contrast

On white

18.17

#0B0B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0B0B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0B48

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0B48	#FFFFFF	#000000	##FFFFFF
##0B0B48	1.00	18.17	1.16	18.17
#FFFFFF	18.17	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00194A

Deuteranopia (green-blind)

#001247

Tritanopia (blue-blind)

#001D29

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0b0b48;
/* rgb */ color: rgb(11, 11, 72);
/* oklch */ color: oklch(20.9% 0.108 272.0);

Tailwind

colors: {
  custom: {
    50: '#574b7c',
    500: '#0b0b48',
    950: '#000000',
  },
}

SCSS

$custom: #0b0b48;
$custom-light: #574b7c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0b48",
  "rgb": {
    "r": 11,
    "g": 11,
    "b": 72
  },
  "hsl": {
    "h": 240,
    "s": 73.494,
    "l": 16.275
  },
  "oklch": {
    "l": 0.20855,
    "c": 0.10812,
    "h": 272
  },
  "luminance": 0.00778
}

Semantic roles & 50–950 ramp

primary

#0B0B48

secondary

#84842A

accent

#F038F0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #0B0B48

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

Preview Lab → · Contrast checker → · Palette generator →