#0B213B#0B213B

#0B213B is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.6% C 0.057 H 254.3°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#0B213B
RGB	rgb(11, 33, 59)
HSL	hsl(213, 69%, 14%)
HSV	hsv(213, 81%, 23%)
CMYK	cmyk(81.4%, 44.1%, 0%, 76.9%)
CIE-LAB	lab(12.45, 2.00, -19.30)
CIE-LCH	lch(12.45, 19.40, 275.90°)
OKLab	oklab(24.56% -0.0155 -0.0549)
OKLCH	oklch(24.56% 0.057 254.3)
XYZ	xyz(1.4710, 1.4745, 4.3439)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B213B #3B250B

analogous

#0B393B #0B213B #0D0B3B

triadic

#0B213B #3B0B21 #213B0B

tetradic

#0B213B #3B0B39 #3B250B #0B3B0D

square

#0B213B #3B0B39 #3B250B #0B3B0D

split-complementary

#0B213B #3B0D0B #393B0B

monochromatic

#050E1A #050E1A #0B213B #153E6F #1E5BA2

Accessibility & contrast

On white

16.22

#0B213B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0B213B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B213B

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B213B	#FFFFFF	#000000	##FFFFFF
##0B213B	1.00	16.22	1.30	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15233C

Deuteranopia (green-blind)

#0E1E3A

Tritanopia (blue-blind)

#00272B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0b213b;
/* rgb */ color: rgb(11, 33, 59);
/* oklch */ color: oklch(24.6% 0.057 254.3);

Tailwind

colors: {
  custom: {
    50: '#515b71',
    500: '#0b213b',
    950: '#000000',
  },
}

SCSS

$custom: #0b213b;
$custom-light: #515b71;
$custom-dark: #000000;

JSON

{
  "hex": "#0b213b",
  "rgb": {
    "r": 11,
    "g": 33,
    "b": 59
  },
  "hsl": {
    "h": 212.5,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.24557,
    "c": 0.05709,
    "h": 254.3
  },
  "luminance": 0.01475
}

Semantic roles & 50–950 ramp

primary

#0B213B

secondary

#78542A

accent

#9B3CEB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0B213B

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

Preview Lab → · Contrast checker → · Palette generator →