#0B0D37#0B0D37

#0B0D37 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.2% C 0.080 H 273.9°. Best body text is #FFFFFF at 18.63:1 contrast (WCAG AA passes).

Color values

HEX	#0B0D37
RGB	rgb(11, 13, 55)
HSL	hsl(237, 67%, 13%)
HSV	hsv(237, 80%, 22%)
CMYK	cmyk(80%, 76.4%, 0%, 78.4%)
CIE-LAB	lab(5.73, 14.83, -27.22)
CIE-LCH	lch(5.73, 31.00, 298.57°)
OKLab	oklab(19.17% 0.0054 -0.0799)
OKLCH	oklch(19.17% 0.08 273.9)
XYZ	xyz(0.9713, 0.6347, 3.6850)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0D37 #37350B

analogous

#0B2337 #0B0D37 #1F0B37

triadic

#0B0D37 #370B0D #0D370B

tetradic

#0B0D37 #370B23 #37350B #0B371F

square

#0B0D37 #370B23 #37350B #0B371F

split-complementary

#0B0D37 #371F0B #23370B

monochromatic

#05061A #05061A #0B0D37 #15196A #1F259D

Accessibility & contrast

On white

18.63

#0B0D37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0B0D37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0D37

18.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0D37	#FFFFFF	#000000	##FFFFFF
##0B0D37	1.00	18.63	1.13	18.63
#FFFFFF	18.63	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001538

Deuteranopia (green-blind)

#001136

Tritanopia (blue-blind)

#001820

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0b0d37;
/* rgb */ color: rgb(11, 13, 55);
/* oklch */ color: oklch(19.2% 0.080 273.9);

Tailwind

colors: {
  custom: {
    50: '#514c6e',
    500: '#0b0d37',
    950: '#000000',
  },
}

SCSS

$custom: #0b0d37;
$custom-light: #514c6e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0d37",
  "rgb": {
    "r": 11,
    "g": 13,
    "b": 55
  },
  "hsl": {
    "h": 237.273,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.19166,
    "c": 0.08005,
    "h": 273.9
  },
  "luminance": 0.00635
}

Semantic roles & 50–950 ramp

primary

#0B0D37

secondary

#74702A

accent

#E23EEA

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #0B0D37

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

Preview Lab → · Contrast checker → · Palette generator →