#0B052A#0B052A

#0B052A is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.9% C 0.072 H 282.9°. Best body text is #FFFFFF at 19.64:1 contrast (WCAG AA passes).

Color values

HEX	#0B052A
RGB	rgb(11, 5, 42)
HSL	hsl(250, 79%, 9%)
HSV	hsv(250, 88%, 16%)
CMYK	cmyk(73.8%, 88.1%, 0%, 83.5%)
CIE-LAB	lab(3.13, 11.49, -21.69)
CIE-LCH	lch(3.13, 24.55, 297.91°)
OKLab	oklab(15.89% 0.0161 -0.0703)
OKLCH	oklch(15.89% 0.072 282.9)
XYZ	xyz(0.6101, 0.3468, 2.2248)
Luminance	0.0035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B052A #242A05

analogous

#05122A #0B052A #1E052A

triadic

#0B052A #2A0B05 #052A0B

tetradic

#0B052A #2A0512 #242A05 #052A1E

square

#0B052A #2A0512 #242A05 #052A1E

split-complementary

#0B052A #2A1E05 #122A05

monochromatic

#07031B #07031B #0B052A #190C61 #281297

Accessibility & contrast

On white

19.64

#0B052A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#0B052A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B052A

19.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B052A	#FFFFFF	#000000	##FFFFFF
##0B052A	1.00	19.64	1.07	19.64
#FFFFFF	19.64	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2B

Deuteranopia (green-blind)

#000A29

Tritanopia (blue-blind)

#000E16

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #0b052a;
/* rgb */ color: rgb(11, 5, 42);
/* oklch */ color: oklch(15.9% 0.072 282.9);

Tailwind

colors: {
  custom: {
    50: '#4c4964',
    500: '#0b052a',
    950: '#000000',
  },
}

SCSS

$custom: #0b052a;
$custom-light: #4c4964;
$custom-dark: #000000;

JSON

{
  "hex": "#0b052a",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 42
  },
  "hsl": {
    "h": 249.73,
    "s": 78.723,
    "l": 9.216
  },
  "oklch": {
    "l": 0.15892,
    "c": 0.07216,
    "h": 282.9
  },
  "luminance": 0.00347
}

Semantic roles & 50–950 ramp

primary

#0B052A

secondary

#5F6C1F

accent

#F533D6

background

#F4F4F5

surface

#E7E6EA

border

#C3C2C6

text

#010005

muted

#777779

Preview Lab

Preview with #0B052A

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

Preview Lab → · Contrast checker → · Palette generator →