#0B0439#0B0439

#0B0439 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.6% C 0.096 H 277.3°. Best body text is #FFFFFF at 19.26:1 contrast (WCAG AA passes).

Color values

HEX	#0B0439
RGB	rgb(11, 4, 57)
HSL	hsl(248, 87%, 12%)
HSV	hsv(248, 93%, 22%)
CMYK	cmyk(80.7%, 93%, 0%, 77.6%)
CIE-LAB	lab(4.09, 19.93, -31.33)
CIE-LCH	lch(4.09, 37.13, 302.46°)
OKLab	oklab(17.62% 0.0121 -0.095)
OKLCH	oklch(17.62% 0.096 277.3)
XYZ	xyz(0.9197, 0.4533, 3.9091)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0439 #323904

analogous

#041839 #0B0439 #260439

triadic

#0B0439 #390B04 #04390B

tetradic

#0B0439 #390418 #323904 #043926

square

#0B0439 #390418 #323904 #043926

split-complementary

#0B0439 #392604 #183904

monochromatic

#06021D #06021D #0B0439 #160872 #210CAB

Accessibility & contrast

On white

19.26

#0B0439 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0439 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0439

19.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0439	#FFFFFF	#000000	##FFFFFF
##0B0439	1.00	19.26	1.09	19.26
#FFFFFF	19.26	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00113A

Deuteranopia (green-blind)

#000C38

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0b0439;
/* rgb */ color: rgb(11, 4, 57);
/* oklch */ color: oklch(17.6% 0.096 277.3);

Tailwind

colors: {
  custom: {
    50: '#514770',
    500: '#0b0439',
    950: '#000000',
  },
}

SCSS

$custom: #0b0439;
$custom-light: #514770;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0439",
  "rgb": {
    "r": 11,
    "g": 4,
    "b": 57
  },
  "hsl": {
    "h": 247.925,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.17621,
    "c": 0.09576,
    "h": 277.3
  },
  "luminance": 0.00453
}

Semantic roles & 50–950 ramp

primary

#0B0439

secondary

#6F7B1E

accent

#FD2BE1

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0439

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

Preview Lab → · Contrast checker → · Palette generator →