#0B1B52#0B1B52

#0B1B52 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.103 H 266.3°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#0B1B52
RGB	rgb(11, 27, 82)
HSL	hsl(226, 76%, 18%)
HSV	hsv(226, 87%, 32%)
CMYK	cmyk(86.6%, 67.1%, 0%, 67.8%)
CIE-LAB	lab(12.38, 16.92, -35.38)
CIE-LCH	lch(12.38, 39.22, 295.56°)
OKLab	oklab(25.11% -0.0066 -0.1023)
OKLCH	oklch(25.11% 0.103 266.3)
XYZ	xyz(2.0524, 1.4640, 8.1554)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1B52 #52420B

analogous

#0B3E52 #0B1B52 #1E0B52

triadic

#0B1B52 #520B1B #1B520B

tetradic

#0B1B52 #520B3E #52420B #0B521E

square

#0B1B52 #520B3E #52420B #0B521E

split-complementary

#0B1B52 #521E0B #3E520B

monochromatic

#04091B #04091C #0B1B52 #122D88 #193FBE

Accessibility & contrast

On white

16.24

#0B1B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0B1B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1B52

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1B52	#FFFFFF	#000000	##FFFFFF
##0B1B52	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002454

Deuteranopia (green-blind)

#001D51

Tritanopia (blue-blind)

#002933

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0b1b52;
/* rgb */ color: rgb(11, 27, 82);
/* oklch */ color: oklch(25.1% 0.103 266.3);

Tailwind

colors: {
  custom: {
    50: '#585683',
    500: '#0b1b52',
    950: '#000000',
  },
}

SCSS

$custom: #0b1b52;
$custom-light: #585683;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1b52",
  "rgb": {
    "r": 11,
    "g": 27,
    "b": 82
  },
  "hsl": {
    "h": 226.479,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.25106,
    "c": 0.10254,
    "h": 266.3
  },
  "luminance": 0.01464
}

Semantic roles & 50–950 ramp

primary

#0B1B52

secondary

#8E782B

accent

#C835F3

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #0B1B52

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

Preview Lab → · Contrast checker → · Palette generator →