#0B1043#0B1043

#0B1043 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.1% C 0.095 H 271.0°. Best body text is #FFFFFF at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#0B1043
RGB	rgb(11, 16, 67)
HSL	hsl(235, 72%, 15%)
HSV	hsv(235, 84%, 26%)
CMYK	cmyk(83.6%, 76.1%, 0%, 73.7%)
CIE-LAB	lab(7.65, 18.74, -32.72)
CIE-LCH	lch(7.65, 37.70, 299.80°)
OKLab	oklab(21.15% 0.0017 -0.0947)
OKLCH	oklch(21.15% 0.095 271)
XYZ	xyz(1.3361, 0.8468, 5.4021)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.70

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1043 #433E0B

analogous

#0B2C43 #0B1043 #220B43

triadic

#0B1043 #430B10 #10430B

tetradic

#0B1043 #430B2C #433E0B #0B4322

square

#0B1043 #430B2C #433E0B #0B4322

split-complementary

#0B1043 #43220B #2C430B

monochromatic

#04061A #04061A #0B1043 #141D78 #1C29AC

Accessibility & contrast

On white

17.96

#0B1043 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0B1043 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1043

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1043	#FFFFFF	#000000	##FFFFFF
##0B1043	1.00	17.96	1.17	17.96
#FFFFFF	17.96	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A45

Deuteranopia (green-blind)

#001442

Tritanopia (blue-blind)

#001E27

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b1043;
/* rgb */ color: rgb(11, 16, 67);
/* oklch */ color: oklch(21.1% 0.095 271.0);

Tailwind

colors: {
  custom: {
    50: '#554e78',
    500: '#0b1043',
    950: '#000000',
  },
}

SCSS

$custom: #0b1043;
$custom-light: #554e78;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1043",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 67
  },
  "hsl": {
    "h": 234.643,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.21146,
    "c": 0.09469,
    "h": 271
  },
  "luminance": 0.00847
}

Semantic roles & 50–950 ramp

primary

#0B1043

secondary

#80782A

accent

#DE39EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0B1043

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

Preview Lab → · Contrast checker → · Palette generator →