#0B1027#0B1027

#0B1027 is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.3% C 0.047 H 271.8°. Best body text is #FFFFFF at 18.79:1 contrast (WCAG AA passes).

Color values

HEX	#0B1027
RGB	rgb(11, 16, 39)
HSL	hsl(229, 56%, 10%)
HSV	hsv(229, 72%, 15%)
CMYK	cmyk(71.8%, 59%, 0%, 84.7%)
CIE-LAB	lab(5.31, 5.34, -15.99)
CIE-LCH	lch(5.31, 16.86, 288.46°)
OKLab	oklab(18.29% 0.0014 -0.0474)
OKLCH	oklch(18.29% 0.047 271.8)
XYZ	xyz(0.6894, 0.5882, 1.9963)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.27

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1027 #27220B

analogous

#0B1E27 #0B1027 #140B27

triadic

#0B1027 #270B10 #10270B

tetradic

#0B1027 #270B1E #27220B #0B2714

square

#0B1027 #270B1E #27220B #0B2714

split-complementary

#0B1027 #27140B #1E270B

monochromatic

#070A18 #070A18 #0B1027 #182457 #263786

Accessibility & contrast

On white

18.79

#0B1027 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0B1027 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1027

18.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1027	#FFFFFF	#000000	##FFFFFF
##0B1027	1.00	18.79	1.12	18.79
#FFFFFF	18.79	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061328

Deuteranopia (green-blind)

#041027

Tritanopia (blue-blind)

#011519

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0b1027;
/* rgb */ color: rgb(11, 16, 39);
/* oklch */ color: oklch(18.3% 0.047 271.8);

Tailwind

colors: {
  custom: {
    50: '#4c4e61',
    500: '#0b1027',
    950: '#000000',
  },
}

SCSS

$custom: #0b1027;
$custom-light: #4c4e61;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1027",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 39
  },
  "hsl": {
    "h": 229.286,
    "s": 56,
    "l": 9.804
  },
  "oklch": {
    "l": 0.18293,
    "c": 0.04745,
    "h": 271.8
  },
  "luminance": 0.00588
}

Semantic roles & 50–950 ramp

primary

#0B1027

secondary

#63592B

accent

#C449DF

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010105

muted

#777779

Preview Lab

Preview with #0B1027

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

Preview Lab → · Contrast checker → · Palette generator →