#0B0537#0B0537

#0B0537 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.6% C 0.091 H 277.5°. Best body text is #FFFFFF at 19.24:1 contrast (WCAG AA passes).

Color values

HEX	#0B0537
RGB	rgb(11, 5, 55)
HSL	hsl(247, 83%, 12%)
HSV	hsv(247, 91%, 22%)
CMYK	cmyk(80%, 90.9%, 0%, 78.4%)
CIE-LAB	lab(4.11, 18.36, -29.84)
CIE-LCH	lch(4.11, 35.03, 301.60°)
OKLab	oklab(17.56% 0.012 -0.0906)
OKLCH	oklch(17.56% 0.091 277.5)
XYZ	xyz(0.8816, 0.4554, 3.6551)
Luminance	0.0046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0537 #313705

analogous

#051837 #0B0537 #240537

triadic

#0B0537 #370B05 #05370B

tetradic

#0B0537 #370518 #313705 #053724

square

#0B0537 #370518 #313705 #053724

split-complementary

#0B0537 #372405 #183705

monochromatic

#06031C #06031C #0B0537 #160A6F #210FA7

Accessibility & contrast

On white

19.24

#0B0537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0537

19.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0537	#FFFFFF	#000000	##FFFFFF
##0B0537	1.00	19.24	1.09	19.24
#FFFFFF	19.24	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001038

Deuteranopia (green-blind)

#000C36

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0b0537;
/* rgb */ color: rgb(11, 5, 55);
/* oklch */ color: oklch(17.6% 0.091 277.5);

Tailwind

colors: {
  custom: {
    50: '#51486e',
    500: '#0b0537',
    950: '#000000',
  },
}

SCSS

$custom: #0b0537;
$custom-light: #51486e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0537",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 55
  },
  "hsl": {
    "h": 247.2,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17562,
    "c": 0.09142,
    "h": 277.5
  },
  "luminance": 0.00456
}

Semantic roles & 50–950 ramp

primary

#0B0537

secondary

#6E7820

accent

#FA2EE1

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0537

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

Preview Lab → · Contrast checker → · Palette generator →