#0B152F#0B152F

#0B152F is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.3% C 0.054 H 266.0°. Best body text is #FFFFFF at 18.06:1 contrast (WCAG AA passes).

Color values

HEX	#0B152F
RGB	rgb(11, 21, 47)
HSL	hsl(223, 62%, 11%)
HSV	hsv(223, 77%, 18%)
CMYK	cmyk(76.6%, 55.3%, 0%, 81.6%)
CIE-LAB	lab(7.34, 5.92, -18.77)
CIE-LCH	lch(7.34, 19.68, 287.50°)
OKLab	oklab(20.31% -0.0038 -0.0537)
OKLCH	oklch(20.31% 0.054 266)
XYZ	xyz(0.9191, 0.8126, 2.7972)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B152F #2F250B

analogous

#0B272F #0B152F #130B2F

triadic

#0B152F #2F0B15 #152F0B

tetradic

#0B152F #2F0B27 #2F250B #0B2F13

square

#0B152F #2F0B27 #2F250B #0B2F13

split-complementary

#0B152F #2F130B #272F0B

monochromatic

#060B19 #060B19 #0B152F #172B61 #224192

Accessibility & contrast

On white

18.06

#0B152F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0B152F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B152F

18.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B152F	#FFFFFF	#000000	##FFFFFF
##0B152F	1.00	18.06	1.16	18.06
#FFFFFF	18.06	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081830

Deuteranopia (green-blind)

#04152E

Tritanopia (blue-blind)

#001B1F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0b152f;
/* rgb */ color: rgb(11, 21, 47);
/* oklch */ color: oklch(20.3% 0.054 266.0);

Tailwind

colors: {
  custom: {
    50: '#4e5167',
    500: '#0b152f',
    950: '#000000',
  },
}

SCSS

$custom: #0b152f;
$custom-light: #4e5167;
$custom-dark: #000000;

JSON

{
  "hex": "#0b152f",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 47
  },
  "hsl": {
    "h": 223.333,
    "s": 62.069,
    "l": 11.373
  },
  "oklch": {
    "l": 0.20314,
    "c": 0.05385,
    "h": 266
  },
  "luminance": 0.00813
}

Semantic roles & 50–950 ramp

primary

#0B152F

secondary

#6B592A

accent

#B843E5

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0B152F

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

Preview Lab → · Contrast checker → · Palette generator →