#0B0B43#0B0B43

#0B0B43 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.2% C 0.101 H 272.7°. Best body text is #FFFFFF at 18.37:1 contrast (WCAG AA passes).

Color values

HEX#0B0B43
RGBrgb(11, 11, 67)
HSLhsl(240, 72%, 15%)
HSVhsv(240, 84%, 26%)
CMYKcmyk(83.6%, 83.6%, 0%, 73.7%)
CIE-LABlab(6.46, 21.84, -34.66)
CIE-LCHlch(6.46, 40.97, 302.21°)
OKLaboklab(20.22% 0.0048 -0.1008)
OKLCHoklch(20.22% 0.101 272.7)
XYZxyz(1.2705, 0.7156, 5.3803)
Luminance0.0072 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0B0B43 #43430B
analogous
#0B2743 #0B0B43 #270B43
triadic
#0B0B43 #430B0B #0B430B
tetradic
#0B0B43 #430B27 #43430B #0B4327
square
#0B0B43 #430B27 #43430B #0B4327
split-complementary
#0B0B43 #43270B #27430B
monochromatic
#04041A #04041A #0B0B43 #141478 #1C1CAC

Accessibility & contrast

On white

18.37
#0B0B43 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.14
#0B0B43 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0B43
18.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0B0B43#FFFFFF#000000##FFFFFF
##0B0B431.0018.371.1418.37
#FFFFFF18.371.0021.001.00
#0000001.1421.001.0021.00
##FFFFFF18.371.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001745
Deuteranopia (green-blind)
#001242
Tritanopia (blue-blind)
#001B26
Achromatopsia (no color)
#141414

Design tokens & code

CSS
--color: #0b0b43;
/* rgb */ color: rgb(11, 11, 67);
/* oklch */ color: oklch(20.2% 0.101 272.7);
Tailwind
colors: {
  custom: {
    50: '#554b78',
    500: '#0b0b43',
    950: '#000000',
  },
}
SCSS
$custom: #0b0b43;
$custom-light: #554b78;
$custom-dark: #000000;
JSON
{
  "hex": "#0b0b43",
  "rgb": {
    "r": 11,
    "g": 11,
    "b": 67
  },
  "hsl": {
    "h": 240,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.20219,
    "c": 0.10096,
    "h": 272.7
  },
  "luminance": 0.00716
}

Semantic roles & 50–950 ramp

primary
#0B0B43
secondary
#80802A
accent
#EF39EF
background
#F5F4F7
surface
#E9E7ED
border
#C5C3C8
text
#030109
muted
#78777B

Preview Lab

Preview with #0B0B43

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

Preview Lab → · Contrast checker → · Palette generator →

#0B0B43 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva