#0B3447#0B3447

#0B3447 is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.7% C 0.055 H 233.2°. Best body text is #FFFFFF at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#0B3447
RGB	rgb(11, 52, 71)
HSL	hsl(199, 73%, 16%)
HSV	hsv(199, 85%, 28%)
CMYK	cmyk(84.5%, 26.8%, 0%, 72.2%)
CIE-LAB	lab(19.97, -6.29, -15.76)
CIE-LCH	lch(19.97, 16.97, 248.23°)
OKLab	oklab(30.73% -0.0332 -0.0444)
OKLCH	oklch(30.73% 0.055 233.2)
XYZ	xyz(2.5029, 2.9818, 6.4036)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3447 #471E0B

analogous

#0B473C #0B3447 #0B1647

triadic

#0B3447 #470B34 #34470B

tetradic

#0B3447 #3C0B47 #471E0B #16470B

square

#0B3447 #3C0B47 #471E0B #16470B

split-complementary

#0B3447 #470B16 #473C0B

monochromatic

#04131A #04131A #0B3447 #135B7C #1B82B1

Accessibility & contrast

On white

13.15

#0B3447 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#0B3447 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3447

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3447	#FFFFFF	#000000	##FFFFFF
##0B3447	1.00	13.15	1.60	13.15
#FFFFFF	13.15	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3348

Deuteranopia (green-blind)

#232E47

Tritanopia (blue-blind)

#00393A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0b3447;
/* rgb */ color: rgb(11, 52, 71);
/* oklch */ color: oklch(30.7% 0.055 233.2);

Tailwind

colors: {
  custom: {
    50: '#556b7a',
    500: '#0b3447',
    950: '#000000',
  },
}

SCSS

$custom: #0b3447;
$custom-light: #556b7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3447",
  "rgb": {
    "r": 11,
    "g": 52,
    "b": 71
  },
  "hsl": {
    "h": 199,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.30729,
    "c": 0.05544,
    "h": 233.2
  },
  "luminance": 0.02982
}

Semantic roles & 50–950 ramp

primary

#0B3447

secondary

#83472A

accent

#7238F0

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030609

muted

#787A7B

Preview Lab

Preview with #0B3447

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

Preview Lab → · Contrast checker → · Palette generator →