#0B172D#0B172D

#0B172D is a very dark, muted blue. Relative luminance 0.009; OKLCH L 20.7% C 0.047 H 261.6°. Best body text is #FFFFFF at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#0B172D
RGB	rgb(11, 23, 45)
HSL	hsl(219, 61%, 11%)
HSV	hsv(219, 76%, 18%)
CMYK	cmyk(75.6%, 48.9%, 0%, 82.4%)
CIE-LAB	lab(7.89, 3.51, -16.42)
CIE-LCH	lch(7.89, 16.79, 282.06°)
OKLab	oklab(20.7% -0.0069 -0.0467)
OKLCH	oklch(20.7% 0.047 261.6)
XYZ	xyz(0.9179, 0.8733, 2.6023)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B172D #2D210B

analogous

#0B282D #0B172D #100B2D

triadic

#0B172D #2D0B17 #172D0B

tetradic

#0B172D #2D0B28 #2D210B #0B2D10

square

#0B172D #2D0B28 #2D210B #0B2D10

split-complementary

#0B172D #2D100B #282D0B

monochromatic

#060D19 #060D19 #0B172D #17305E #23498F

Accessibility & contrast

On white

17.88

#0B172D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0B172D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B172D

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B172D	#FFFFFF	#000000	##FFFFFF
##0B172D	1.00	17.88	1.17	17.88
#FFFFFF	17.88	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D192E

Deuteranopia (green-blind)

#09162D

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b172d;
/* rgb */ color: rgb(11, 23, 45);
/* oklch */ color: oklch(20.7% 0.047 261.6);

Tailwind

colors: {
  custom: {
    50: '#4e5366',
    500: '#0b172d',
    950: '#000000',
  },
}

SCSS

$custom: #0b172d;
$custom-light: #4e5366;
$custom-dark: #000000;

JSON

{
  "hex": "#0b172d",
  "rgb": {
    "r": 11,
    "g": 23,
    "b": 45
  },
  "hsl": {
    "h": 218.824,
    "s": 60.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.20703,
    "c": 0.04721,
    "h": 261.6
  },
  "luminance": 0.00873
}

Semantic roles & 50–950 ramp

primary

#0B172D

secondary

#69532A

accent

#AB44E4

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0B172D

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

Preview Lab → · Contrast checker → · Palette generator →