#0B1D4A#0B1D4A

#0B1D4A is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.087 H 264.4°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX#0B1D4A
RGBrgb(11, 29, 74)
HSLhsl(223, 74%, 17%)
HSVhsv(223, 85%, 29%)
CMYKcmyk(85.1%, 60.8%, 0%, 71%)
CIE-LABlab(12.25, 11.84, -30.10)
CIE-LCHlch(12.25, 32.34, 291.47°)
OKLaboklab(24.78% -0.0085 -0.0868)
OKLCHoklch(24.78% 0.087 264.4)
XYZxyz(1.8130, 1.4441, 6.6604)
Luminance0.0144 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0B1D4A #4A380B
analogous
#0B3D4A #0B1D4A #190B4A
triadic
#0B1D4A #4A0B1D #1D4A0B
tetradic
#0B1D4A #4A0B3D #4A380B #0B4A19
square
#0B1D4A #4A0B3D #4A380B #0B4A19
split-complementary
#0B1D4A #4A190B #3D4A0B
monochromatic
#040A1B #040A1B #0B1D4A #13327F #1B47B5

Accessibility & contrast

On white

16.29
#0B1D4A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.29
#0B1D4A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1D4A
16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0B1D4A#FFFFFF#000000##FFFFFF
##0B1D4A1.0016.291.2916.29
#FFFFFF16.291.0021.001.00
#0000001.2921.001.0021.00
##FFFFFF16.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00234C
Deuteranopia (green-blind)
#001D49
Tritanopia (blue-blind)
#002830
Achromatopsia (no color)
#202020

Design tokens & code

CSS
--color: #0b1d4a;
/* rgb */ color: rgb(11, 29, 74);
/* oklch */ color: oklch(24.8% 0.087 264.4);
Tailwind
colors: {
  custom: {
    50: '#56587d',
    500: '#0b1d4a',
    950: '#000000',
  },
}
SCSS
$custom: #0b1d4a;
$custom-light: #56587d;
$custom-dark: #000000;
JSON
{
  "hex": "#0b1d4a",
  "rgb": {
    "r": 11,
    "g": 29,
    "b": 74
  },
  "hsl": {
    "h": 222.857,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.24777,
    "c": 0.08721,
    "h": 264.4
  },
  "luminance": 0.01444
}

Semantic roles & 50–950 ramp

primary
#0B1D4A
secondary
#866C2B
accent
#BC37F1
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#030309
muted
#78787B

Preview Lab

Preview with #0B1D4A

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

Preview Lab → · Contrast checker → · Palette generator →

#0B1D4A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva