#0B212F#0B212F

#0B212F is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 23.7% C 0.039 H 239.2°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#0B212F
RGB	rgb(11, 33, 47)
HSL	hsl(203, 62%, 11%)
HSV	hsv(203, 77%, 18%)
CMYK	cmyk(76.6%, 29.8%, 0%, 81.6%)
CIE-LAB	lab(11.72, -3.21, -11.87)
CIE-LCH	lch(11.72, 12.29, 254.88°)
OKLab	oklab(23.75% -0.0198 -0.0333)
OKLCH	oklch(23.75% 0.039 239.2)
XYZ	xyz(1.1948, 1.3640, 2.8891)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B212F #2F190B

analogous

#0B2F2B #0B212F #0B0F2F

triadic

#0B212F #2F0B21 #212F0B

tetradic

#0B212F #2B0B2F #2F190B #0F2F0B

square

#0B212F #2B0B2F #2F190B #0F2F0B

split-complementary

#0B212F #2F0B0F #2F2B0B

monochromatic

#061119 #061119 #0B212F #174461 #226792

Accessibility & contrast

On white

16.50

#0B212F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#0B212F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B212F

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B212F	#FFFFFF	#000000	##FFFFFF
##0B212F	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2130

Deuteranopia (green-blind)

#161D2F

Tritanopia (blue-blind)

#002526

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0b212f;
/* rgb */ color: rgb(11, 33, 47);
/* oklch */ color: oklch(23.7% 0.039 239.2);

Tailwind

colors: {
  custom: {
    50: '#4e5c67',
    500: '#0b212f',
    950: '#000000',
  },
}

SCSS

$custom: #0b212f;
$custom-light: #4e5c67;
$custom-dark: #000000;

JSON

{
  "hex": "#0b212f",
  "rgb": {
    "r": 11,
    "g": 33,
    "b": 47
  },
  "hsl": {
    "h": 203.333,
    "s": 62.069,
    "l": 11.373
  },
  "oklch": {
    "l": 0.23745,
    "c": 0.03878,
    "h": 239.2
  },
  "luminance": 0.01364
}

Semantic roles & 50–950 ramp

primary

#0B212F

secondary

#6B442A

accent

#8243E5

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020406

muted

#78797A

Preview Lab

Preview with #0B212F

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

Preview Lab → · Contrast checker → · Palette generator →