#0B172E#0B172E

#0B172E is a very dark, muted blue. Relative luminance 0.009; OKLCH L 20.8% C 0.049 H 262.2°. Best body text is #FFFFFF at 17.85:1 contrast (WCAG AA passes).

Color values

HEX	#0B172E
RGB	rgb(11, 23, 46)
HSL	hsl(219, 61%, 11%)
HSV	hsv(219, 76%, 18%)
CMYK	cmyk(76.1%, 50%, 0%, 82%)
CIE-LAB	lab(7.96, 3.95, -17.05)
CIE-LCH	lch(7.96, 17.50, 283.06°)
OKLab	oklab(20.78% -0.0066 -0.0485)
OKLCH	oklch(20.78% 0.049 262.2)
XYZ	xyz(0.9374, 0.8811, 2.7049)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B172E #2E220B

analogous

#0B282E #0B172E #100B2E

triadic

#0B172E #2E0B17 #172E0B

tetradic

#0B172E #2E0B28 #2E220B #0B2E10

square

#0B172E #2E0B28 #2E220B #0B2E10

split-complementary

#0B172E #2E100B #282E0B

monochromatic

#060C19 #060C19 #0B172E #17305F #234891

Accessibility & contrast

On white

17.85

#0B172E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0B172E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B172E

17.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B172E	#FFFFFF	#000000	##FFFFFF
##0B172E	1.00	17.85	1.18	17.85
#FFFFFF	17.85	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D192F

Deuteranopia (green-blind)

#08162E

Tritanopia (blue-blind)

#001C20

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b172e;
/* rgb */ color: rgb(11, 23, 46);
/* oklch */ color: oklch(20.8% 0.049 262.2);

Tailwind

colors: {
  custom: {
    50: '#4e5367',
    500: '#0b172e',
    950: '#000000',
  },
}

SCSS

$custom: #0b172e;
$custom-light: #4e5367;
$custom-dark: #000000;

JSON

{
  "hex": "#0b172e",
  "rgb": {
    "r": 11,
    "g": 23,
    "b": 46
  },
  "hsl": {
    "h": 219.429,
    "s": 61.404,
    "l": 11.176
  },
  "oklch": {
    "l": 0.20781,
    "c": 0.04898,
    "h": 262.2
  },
  "luminance": 0.00881
}

Semantic roles & 50–950 ramp

primary

#0B172E

secondary

#6A542A

accent

#AD43E5

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0B172E

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

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