#0B0737#0B0737

#0B0737 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.0% C 0.088 H 276.7°. Best body text is #FFFFFF at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#0B0737
RGB	rgb(11, 7, 55)
HSL	hsl(245, 77%, 12%)
HSV	hsv(245, 87%, 22%)
CMYK	cmyk(80%, 87.3%, 0%, 78.4%)
CIE-LAB	lab(4.51, 17.52, -29.20)
CIE-LCH	lch(4.51, 34.06, 300.96°)
OKLab	oklab(17.98% 0.0103 -0.0878)
OKLCH	oklch(17.98% 0.088 276.7)
XYZ	xyz(0.9034, 0.4989, 3.6624)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0737 #333707

analogous

#071B37 #0B0737 #230737

triadic

#0B0737 #370B07 #07370B

tetradic

#0B0737 #37071B #333707 #073723

square

#0B0737 #37071B #333707 #073723

split-complementary

#0B0737 #372307 #1B3707

monochromatic

#05031B #05031B #0B0737 #160E6D #2115A4

Accessibility & contrast

On white

19.09

#0B0737 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0B0737 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0737

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0737	#FFFFFF	#000000	##FFFFFF
##0B0737	1.00	19.09	1.10	19.09
#FFFFFF	19.09	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001238

Deuteranopia (green-blind)

#000D36

Tritanopia (blue-blind)

#00151E

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0b0737;
/* rgb */ color: rgb(11, 7, 55);
/* oklch */ color: oklch(18.0% 0.088 276.7);

Tailwind

colors: {
  custom: {
    50: '#51496e',
    500: '#0b0737',
    950: '#000000',
  },
}

SCSS

$custom: #0b0737;
$custom-light: #51496e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0737",
  "rgb": {
    "r": 11,
    "g": 7,
    "b": 55
  },
  "hsl": {
    "h": 245,
    "s": 77.419,
    "l": 12.157
  },
  "oklch": {
    "l": 0.17977,
    "c": 0.08841,
    "h": 276.7
  },
  "luminance": 0.00499
}

Semantic roles & 50–950 ramp

primary

#0B0737

secondary

#707723

accent

#F434E4

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0737

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

Preview Lab → · Contrast checker → · Palette generator →