#0B0538#0B0538

#0B0538 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.7% C 0.093 H 277.2°. Best body text is #FFFFFF at 19.21:1 contrast (WCAG AA passes).

Color values

HEX	#0B0538
RGB	rgb(11, 5, 56)
HSL	hsl(247, 84%, 12%)
HSV	hsv(247, 91%, 22%)
CMYK	cmyk(80.4%, 91.1%, 0%, 78%)
CIE-LAB	lab(4.20, 18.94, -30.43)
CIE-LCH	lch(4.20, 35.84, 301.89°)
OKLab	oklab(17.7% 0.0117 -0.0921)
OKLCH	oklch(17.7% 0.093 277.2)
XYZ	xyz(0.9059, 0.4651, 3.7827)
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

#0B0538 #323805

analogous

#051938 #0B0538 #250538

triadic

#0B0538 #380B05 #05380B

tetradic

#0B0538 #380519 #323805 #053825

square

#0B0538 #380519 #323805 #053825

split-complementary

#0B0538 #382505 #193805

monochromatic

#06031C #06031C #0B0538 #160A70 #210FA8

Accessibility & contrast

On white

19.21

#0B0538 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0538 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0538

19.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0538	#FFFFFF	#000000	##FFFFFF
##0B0538	1.00	19.21	1.09	19.21
#FFFFFF	19.21	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001139

Deuteranopia (green-blind)

#000C37

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0b0538;
/* rgb */ color: rgb(11, 5, 56);
/* oklch */ color: oklch(17.7% 0.093 277.2);

Tailwind

colors: {
  custom: {
    50: '#51486f',
    500: '#0b0538',
    950: '#000000',
  },
}

SCSS

$custom: #0b0538;
$custom-light: #51486f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0538",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 56
  },
  "hsl": {
    "h": 247.059,
    "s": 83.607,
    "l": 11.961
  },
  "oklch": {
    "l": 0.17695,
    "c": 0.09284,
    "h": 277.2
  },
  "luminance": 0.00465
}

Semantic roles & 50–950 ramp

primary

#0B0538

secondary

#6F7920

accent

#FA2EE2

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0538

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

Preview Lab → · Contrast checker → · Palette generator →