#0B2137#0B2137

#0B2137 is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 24.3% C 0.051 H 250.7°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#0B2137
RGB	rgb(11, 33, 55)
HSL	hsl(210, 67%, 13%)
HSV	hsv(210, 80%, 22%)
CMYK	cmyk(80%, 40%, 0%, 78.4%)
CIE-LAB	lab(12.19, 0.23, -16.87)
CIE-LCH	lch(12.19, 16.87, 270.77°)
OKLab	oklab(24.27% -0.0168 -0.0478)
OKLCH	oklch(24.27% 0.051 250.7)
XYZ	xyz(1.3712, 1.4346, 3.8183)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2137 #37210B

analogous

#0B3737 #0B2137 #0B0B37

triadic

#0B2137 #370B21 #21370B

tetradic

#0B2137 #370B37 #37210B #0B370B

square

#0B2137 #370B37 #37210B #0B370B

split-complementary

#0B2137 #370B0B #37370B

monochromatic

#050F1A #050F1A #0B2137 #15406A #1F5E9D

Accessibility & contrast

On white

16.32

#0B2137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0B2137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2137

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2137	#FFFFFF	#000000	##FFFFFF
##0B2137	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172238

Deuteranopia (green-blind)

#111E37

Tritanopia (blue-blind)

#002629

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0b2137;
/* rgb */ color: rgb(11, 33, 55);
/* oklch */ color: oklch(24.3% 0.051 250.7);

Tailwind

colors: {
  custom: {
    50: '#505b6e',
    500: '#0b2137',
    950: '#000000',
  },
}

SCSS

$custom: #0b2137;
$custom-light: #505b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2137",
  "rgb": {
    "r": 11,
    "g": 33,
    "b": 55
  },
  "hsl": {
    "h": 210,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.2427,
    "c": 0.05069,
    "h": 250.7
  },
  "luminance": 0.01435
}

Semantic roles & 50–950 ramp

primary

#0B2137

secondary

#744F2A

accent

#943EEA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020407

muted

#78797A

Preview Lab

Preview with #0B2137

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

Preview Lab → · Contrast checker → · Palette generator →