#0B213A#0B213A

#0B213A is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.5% C 0.055 H 253.5°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#0B213A
RGB	rgb(11, 33, 58)
HSL	hsl(212, 68%, 14%)
HSV	hsv(212, 81%, 23%)
CMYK	cmyk(81%, 43.1%, 0%, 77.3%)
CIE-LAB	lab(12.38, 1.55, -18.69)
CIE-LCH	lch(12.38, 18.76, 274.74°)
OKLab	oklab(24.48% -0.0158 -0.0532)
OKLCH	oklch(24.48% 0.055 253.5)
XYZ	xyz(1.4453, 1.4642, 4.2086)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B213A #3A240B

analogous

#0B383A #0B213A #0C0B3A

triadic

#0B213A #3A0B21 #213A0B

tetradic

#0B213A #3A0B38 #3A240B #0B3A0C

square

#0B213A #3A0B38 #3A240B #0B3A0C

split-complementary

#0B213A #3A0C0B #383A0B

monochromatic

#050F1A #050F1A #0B213A #153E6D #1F5CA1

Accessibility & contrast

On white

16.24

#0B213A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0B213A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B213A

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B213A	#FFFFFF	#000000	##FFFFFF
##0B213A	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233B

Deuteranopia (green-blind)

#0F1E39

Tritanopia (blue-blind)

#00272A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0b213a;
/* rgb */ color: rgb(11, 33, 58);
/* oklch */ color: oklch(24.5% 0.055 253.5);

Tailwind

colors: {
  custom: {
    50: '#515b70',
    500: '#0b213a',
    950: '#000000',
  },
}

SCSS

$custom: #0b213a;
$custom-light: #515b70;
$custom-dark: #000000;

JSON

{
  "hex": "#0b213a",
  "rgb": {
    "r": 11,
    "g": 33,
    "b": 58
  },
  "hsl": {
    "h": 211.915,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24484,
    "c": 0.05547,
    "h": 253.5
  },
  "luminance": 0.01464
}

Semantic roles & 50–950 ramp

primary

#0B213A

secondary

#77532A

accent

#993DEB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0B213A

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

Preview Lab → · Contrast checker → · Palette generator →