#0B0339#0B0339

#0B0339 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.4% C 0.097 H 277.6°. Best body text is #FFFFFF at 19.33:1 contrast (WCAG AA passes).

Color values

HEX	#0B0339
RGB	rgb(11, 3, 57)
HSL	hsl(249, 90%, 12%)
HSV	hsv(249, 95%, 22%)
CMYK	cmyk(80.7%, 94.7%, 0%, 77.6%)
CIE-LAB	lab(3.90, 20.36, -31.65)
CIE-LCH	lch(3.90, 37.63, 302.75°)
OKLab	oklab(17.41% 0.0129 -0.0964)
OKLCH	oklch(17.41% 0.097 277.6)
XYZ	xyz(0.9089, 0.4316, 3.9055)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0339 #313903

analogous

#031639 #0B0339 #260339

triadic

#0B0339 #390B03 #03390B

tetradic

#0B0339 #390316 #313903 #033926

square

#0B0339 #390316 #313903 #033926

split-complementary

#0B0339 #392603 #163903

monochromatic

#06021D #06021D #0B0339 #160673 #2109AD

Accessibility & contrast

On white

19.33

#0B0339 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0339 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0339

19.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0339	#FFFFFF	#000000	##FFFFFF
##0B0339	1.00	19.33	1.09	19.33
#FFFFFF	19.33	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00103A

Deuteranopia (green-blind)

#000B38

Tritanopia (blue-blind)

#00131E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0b0339;
/* rgb */ color: rgb(11, 3, 57);
/* oklch */ color: oklch(17.4% 0.097 277.6);

Tailwind

colors: {
  custom: {
    50: '#514770',
    500: '#0b0339',
    950: '#000000',
  },
}

SCSS

$custom: #0b0339;
$custom-light: #514770;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0339",
  "rgb": {
    "r": 11,
    "g": 3,
    "b": 57
  },
  "hsl": {
    "h": 248.889,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17408,
    "c": 0.09731,
    "h": 277.6
  },
  "luminance": 0.00432
}

Semantic roles & 50–950 ramp

primary

#0B0339

secondary

#6E7C1C

accent

#FF29DF

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0339

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

Preview Lab → · Contrast checker → · Palette generator →