#0B1933#0B1933

#0B1933 is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.7% C 0.055 H 261.6°. Best body text is #FFFFFF at 17.49:1 contrast (WCAG AA passes).

Color values

HEX	#0B1933
RGB	rgb(11, 25, 51)
HSL	hsl(219, 65%, 12%)
HSV	hsv(219, 78%, 20%)
CMYK	cmyk(78.4%, 51%, 0%, 80%)
CIE-LAB	lab(9.04, 4.60, -18.99)
CIE-LCH	lch(9.04, 19.54, 283.62°)
OKLab	oklab(21.73% -0.008 -0.0542)
OKLCH	oklch(21.73% 0.055 261.6)
XYZ	xyz(1.0830, 1.0053, 3.2683)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1933 #33250B

analogous

#0B2D33 #0B1933 #110B33

triadic

#0B1933 #330B19 #19330B

tetradic

#0B1933 #330B2D #33250B #0B3311

square

#0B1933 #330B2D #33250B #0B3311

split-complementary

#0B1933 #33110B #2D330B

monochromatic

#050C19 #050C19 #0B1933 #163265 #214A98

Accessibility & contrast

On white

17.49

#0B1933 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0B1933 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1933

17.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1933	#FFFFFF	#000000	##FFFFFF
##0B1933	1.00	17.49	1.20	17.49
#FFFFFF	17.49	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1C34

Deuteranopia (green-blind)

#071832

Tritanopia (blue-blind)

#001F23

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0b1933;
/* rgb */ color: rgb(11, 25, 51);
/* oklch */ color: oklch(21.7% 0.055 261.6);

Tailwind

colors: {
  custom: {
    50: '#4f556b',
    500: '#0b1933',
    950: '#000000',
  },
}

SCSS

$custom: #0b1933;
$custom-light: #4f556b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1933",
  "rgb": {
    "r": 11,
    "g": 25,
    "b": 51
  },
  "hsl": {
    "h": 219,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.2173,
    "c": 0.05478,
    "h": 261.6
  },
  "luminance": 0.01005
}

Semantic roles & 50–950 ramp

primary

#0B1933

secondary

#70572A

accent

#AD40E8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0B1933

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

Preview Lab → · Contrast checker → · Palette generator →