#0D182B#0D182B

#0D182B is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.0% C 0.041 H 260.8°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#0D182B
RGB	rgb(13, 24, 43)
HSL	hsl(218, 54%, 11%)
HSV	hsv(218, 70%, 17%)
CMYK	cmyk(69.8%, 44.2%, 0%, 83.1%)
CIE-LAB	lab(8.25, 2.38, -14.37)
CIE-LCH	lch(8.25, 14.56, 279.39°)
OKLab	oklab(20.97% -0.0066 -0.0406)
OKLCH	oklch(20.97% 0.041 260.8)
XYZ	xyz(0.9285, 0.9132, 2.4124)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D182B #2B200D

analogous

#0D272B #0D182B #110D2B

triadic

#0D182B #2B0D18 #182B0D

tetradic

#0D182B #2B0D27 #2B200D #0D2B11

square

#0D182B #2B0D27 #2B200D #0D2B11

split-complementary

#0D182B #2B110D #272B0D

monochromatic

#070D17 #070D17 #0D182B #1B325A #294C89

Accessibility & contrast

On white

17.76

#0D182B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0D182B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D182B

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D182B	#FFFFFF	#000000	##FFFFFF
##0D182B	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101A2C

Deuteranopia (green-blind)

#0C172B

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0d182b;
/* rgb */ color: rgb(13, 24, 43);
/* oklch */ color: oklch(21.0% 0.041 260.8);

Tailwind

colors: {
  custom: {
    50: '#4e5464',
    500: '#0d182b',
    950: '#000000',
  },
}

SCSS

$custom: #0d182b;
$custom-light: #4e5464;
$custom-dark: #000000;

JSON

{
  "hex": "#0d182b",
  "rgb": {
    "r": 13,
    "g": 24,
    "b": 43
  },
  "hsl": {
    "h": 218,
    "s": 53.571,
    "l": 10.98
  },
  "oklch": {
    "l": 0.20972,
    "c": 0.04116,
    "h": 260.8
  },
  "luminance": 0.00913
}

Semantic roles & 50–950 ramp

primary

#0D182B

secondary

#66512E

accent

#A74BDD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020205

muted

#78787A

Preview Lab

Preview with #0D182B

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

Preview Lab → · Contrast checker → · Palette generator →