#0B0840#0B0840

#0B0840 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.3% C 0.100 H 274.1°. Best body text is #FFFFFF at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#0B0840
RGB	rgb(11, 8, 64)
HSL	hsl(243, 78%, 14%)
HSV	hsv(243, 88%, 25%)
CMYK	cmyk(82.8%, 87.5%, 0%, 74.9%)
CIE-LAB	lab(5.55, 21.88, -34.01)
CIE-LCH	lch(5.55, 40.44, 302.75°)
OKLab	oklab(19.33% 0.0072 -0.0999)
OKLCH	oklch(19.33% 0.1 274.1)
XYZ	xyz(1.1500, 0.6149, 4.9076)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.72

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0840 #3D4008

analogous

#082140 #0B0840 #270840

triadic

#0B0840 #400B08 #08400B

tetradic

#0B0840 #400821 #3D4008 #084027

square

#0B0840 #400821 #3D4008 #084027

split-complementary

#0B0840 #402708 #214008

monochromatic

#05031B #05031B #0B0840 #140F76 #1E16AD

Accessibility & contrast

On white

18.70

#0B0840 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0B0840 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0840

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0840	#FFFFFF	#000000	##FFFFFF
##0B0840	1.00	18.70	1.12	18.70
#FFFFFF	18.70	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001542

Deuteranopia (green-blind)

#00103F

Tritanopia (blue-blind)

#001924

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0b0840;
/* rgb */ color: rgb(11, 8, 64);
/* oklch */ color: oklch(19.3% 0.100 274.1);

Tailwind

colors: {
  custom: {
    50: '#544976',
    500: '#0b0840',
    950: '#000000',
  },
}

SCSS

$custom: #0b0840;
$custom-light: #544976;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0840",
  "rgb": {
    "r": 11,
    "g": 8,
    "b": 64
  },
  "hsl": {
    "h": 243.214,
    "s": 77.778,
    "l": 14.118
  },
  "oklch": {
    "l": 0.19328,
    "c": 0.10016,
    "h": 274.1
  },
  "luminance": 0.00615
}

Semantic roles & 50–950 ramp

primary

#0B0840

secondary

#7A7E25

accent

#F434EA

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0B0840

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

Preview Lab → · Contrast checker → · Palette generator →