#0B0A40#0B0A40

#0B0A40 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.7% C 0.098 H 273.5°. Best body text is #FFFFFF at 18.56:1 contrast (WCAG AA passes).

Color values

HEX	#0B0A40
RGB	rgb(11, 10, 64)
HSL	hsl(241, 73%, 15%)
HSV	hsv(241, 84%, 25%)
CMYK	cmyk(82.8%, 84.4%, 0%, 74.9%)
CIE-LAB	lab(5.95, 20.91, -33.37)
CIE-LCH	lch(5.95, 39.38, 302.07°)
OKLab	oklab(19.67% 0.006 -0.0976)
OKLCH	oklch(19.67% 0.098 273.5)
XYZ	xyz(1.1717, 0.6583, 4.9148)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 2.81

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0A40 #3F400A

analogous

#0A2440 #0B0A40 #260A40

triadic

#0B0A40 #400B0A #0A400B

tetradic

#0B0A40 #400A24 #3F400A #0A4026

square

#0B0A40 #400A24 #3F400A #0A4026

split-complementary

#0B0A40 #40260A #24400A

monochromatic

#05041A #05041A #0B0A40 #141275 #1D1BAA

Accessibility & contrast

On white

18.56

#0B0A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0B0A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0A40

18.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0A40	#FFFFFF	#000000	##FFFFFF
##0B0A40	1.00	18.56	1.13	18.56
#FFFFFF	18.56	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001642

Deuteranopia (green-blind)

#00113F

Tritanopia (blue-blind)

#001A24

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0b0a40;
/* rgb */ color: rgb(11, 10, 64);
/* oklch */ color: oklch(19.7% 0.098 273.5);

Tailwind

colors: {
  custom: {
    50: '#544a75',
    500: '#0b0a40',
    950: '#000000',
  },
}

SCSS

$custom: #0b0a40;
$custom-light: #544a75;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0a40",
  "rgb": {
    "r": 11,
    "g": 10,
    "b": 64
  },
  "hsl": {
    "h": 241.111,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.19672,
    "c": 0.09777,
    "h": 273.5
  },
  "luminance": 0.00658
}

Semantic roles & 50–950 ramp

primary

#0B0A40

secondary

#7C7D29

accent

#F038EC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0B0A40

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

Preview Lab → · Contrast checker → · Palette generator →