#0B1145#0B1145

#0B1145 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.6% C 0.096 H 270.5°. Best body text is #FFFFFF at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#0B1145
RGB	rgb(11, 17, 69)
HSL	hsl(234, 73%, 16%)
HSV	hsv(234, 84%, 27%)
CMYK	cmyk(84.1%, 75.4%, 0%, 72.9%)
CIE-LAB	lab(8.14, 18.86, -33.32)
CIE-LCH	lch(8.14, 38.28, 299.51°)
OKLab	oklab(21.58% 0.0008 -0.0964)
OKLCH	oklch(21.58% 0.096 270.5)
XYZ	xyz(1.4123, 0.9016, 5.7287)
Luminance	0.0090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.47

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1145 #453F0B

analogous

#0B2E45 #0B1145 #220B45

triadic

#0B1145 #450B11 #11450B

tetradic

#0B1145 #450B2E #453F0B #0B4522

square

#0B1145 #450B2E #453F0B #0B4522

split-complementary

#0B1145 #45220B #2E450B

monochromatic

#04071A #04071A #0B1145 #131E7A #1C2BAF

Accessibility & contrast

On white

17.79

#0B1145 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0B1145 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1145

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1145	#FFFFFF	#000000	##FFFFFF
##0B1145	1.00	17.79	1.18	17.79
#FFFFFF	17.79	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B47

Deuteranopia (green-blind)

#001544

Tritanopia (blue-blind)

#001F29

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0b1145;
/* rgb */ color: rgb(11, 17, 69);
/* oklch */ color: oklch(21.6% 0.096 270.5);

Tailwind

colors: {
  custom: {
    50: '#554f79',
    500: '#0b1145',
    950: '#000000',
  },
}

SCSS

$custom: #0b1145;
$custom-light: #554f79;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1145",
  "rgb": {
    "r": 11,
    "g": 17,
    "b": 69
  },
  "hsl": {
    "h": 233.793,
    "s": 72.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.21576,
    "c": 0.09639,
    "h": 270.5
  },
  "luminance": 0.00902
}

Semantic roles & 50–950 ramp

primary

#0B1145

secondary

#81782A

accent

#DC39EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0B1145

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

Preview Lab → · Contrast checker → · Palette generator →