#0B1B48#0B1B48

#0B1B48 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.087 H 265.4°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#0B1B48
RGB	rgb(11, 27, 72)
HSL	hsl(224, 73%, 16%)
HSV	hsv(224, 85%, 28%)
CMYK	cmyk(84.7%, 62.5%, 0%, 71.8%)
CIE-LAB	lab(11.43, 12.49, -30.04)
CIE-LCH	lch(11.43, 32.53, 292.58°)
OKLab	oklab(24.11% -0.0069 -0.0866)
OKLCH	oklch(24.11% 0.087 265.4)
XYZ	xyz(1.6992, 1.3227, 6.2954)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1B48 #48380B

analogous

#0B3A48 #0B1B48 #1A0B48

triadic

#0B1B48 #480B1B #1B480B

tetradic

#0B1B48 #480B3A #48380B #0B481A

square

#0B1B48 #480B3A #48380B #0B481A

split-complementary

#0B1B48 #481A0B #3A480B

monochromatic

#040A1B #040A1B #0B1B48 #132F7D #1B43B2

Accessibility & contrast

On white

16.61

#0B1B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#0B1B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1B48

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1B48	#FFFFFF	#000000	##FFFFFF
##0B1B48	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214A

Deuteranopia (green-blind)

#001C47

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0b1b48;
/* rgb */ color: rgb(11, 27, 72);
/* oklch */ color: oklch(24.1% 0.087 265.4);

Tailwind

colors: {
  custom: {
    50: '#55567b',
    500: '#0b1b48',
    950: '#000000',
  },
}

SCSS

$custom: #0b1b48;
$custom-light: #55567b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1b48",
  "rgb": {
    "r": 11,
    "g": 27,
    "b": 72
  },
  "hsl": {
    "h": 224.262,
    "s": 73.494,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24106,
    "c": 0.08693,
    "h": 265.4
  },
  "luminance": 0.01323
}

Semantic roles & 50–950 ramp

primary

#0B1B48

secondary

#846D2A

accent

#C038F0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0B1B48

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

Preview Lab → · Contrast checker → · Palette generator →