#0B1D4D#0B1D4D

#0B1D4D is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.092 H 264.8°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#0B1D4D
RGB	rgb(11, 29, 77)
HSL	hsl(224, 75%, 17%)
HSV	hsv(224, 86%, 30%)
CMYK	cmyk(85.7%, 62.3%, 0%, 69.8%)
CIE-LAB	lab(12.52, 13.18, -31.73)
CIE-LCH	lch(12.52, 34.36, 292.55°)
OKLab	oklab(25.06% -0.0083 -0.0916)
OKLCH	oklch(25.06% 0.092 264.8)
XYZ	xyz(1.9165, 1.4855, 7.2055)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1D4D #4D3B0B

analogous

#0B3E4D #0B1D4D #1A0B4D

triadic

#0B1D4D #4D0B1D #1D4D0B

tetradic

#0B1D4D #4D0B3E #4D3B0B #0B4D1A

square

#0B1D4D #4D0B3E #4D3B0B #0B4D1A

split-complementary

#0B1D4D #4D1A0B #3E4D0B

monochromatic

#040A1B #040A1B #0B1D4D #133183 #1A45B8

Accessibility & contrast

On white

16.19

#0B1D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0B1D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1D4D

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1D4D	#FFFFFF	#000000	##FFFFFF
##0B1D4D	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244F

Deuteranopia (green-blind)

#001E4C

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0b1d4d;
/* rgb */ color: rgb(11, 29, 77);
/* oklch */ color: oklch(25.1% 0.092 264.8);

Tailwind

colors: {
  custom: {
    50: '#56587f',
    500: '#0b1d4d',
    950: '#000000',
  },
}

SCSS

$custom: #0b1d4d;
$custom-light: #56587f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1d4d",
  "rgb": {
    "r": 11,
    "g": 29,
    "b": 77
  },
  "hsl": {
    "h": 223.636,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.25062,
    "c": 0.09196,
    "h": 264.8
  },
  "luminance": 0.01486
}

Semantic roles & 50–950 ramp

primary

#0B1D4D

secondary

#896F2B

accent

#BE36F2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03030A

muted

#78787C

Preview Lab

Preview with #0B1D4D

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

Preview Lab → · Contrast checker → · Palette generator →