#0B3747#0B3747

#0B3747 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.6% C 0.054 H 227.1°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#0B3747
RGB	rgb(11, 55, 71)
HSL	hsl(196, 73%, 16%)
HSV	hsv(196, 85%, 28%)
CMYK	cmyk(84.5%, 22.5%, 0%, 72.2%)
CIE-LAB	lab(21.05, -8.25, -14.09)
CIE-LCH	lch(21.05, 16.32, 239.64°)
OKLab	oklab(31.59% -0.0367 -0.0395)
OKLCH	oklch(31.59% 0.054 227.1)
XYZ	xyz(2.6411, 3.2581, 6.4497)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3747 #471B0B

analogous

#0B4739 #0B3747 #0B1947

triadic

#0B3747 #470B37 #37470B

tetradic

#0B3747 #390B47 #471B0B #19470B

square

#0B3747 #390B47 #471B0B #19470B

split-complementary

#0B3747 #470B19 #47390B

monochromatic

#04151A #04151A #0B3747 #13607C #1B89B1

Accessibility & contrast

On white

12.71

#0B3747 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#0B3747 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3747

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3747	#FFFFFF	#000000	##FFFFFF
##0B3747	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3648

Deuteranopia (green-blind)

#263047

Tritanopia (blue-blind)

#003C3C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0b3747;
/* rgb */ color: rgb(11, 55, 71);
/* oklch */ color: oklch(31.6% 0.054 227.1);

Tailwind

colors: {
  custom: {
    50: '#556d7a',
    500: '#0b3747',
    950: '#000000',
  },
}

SCSS

$custom: #0b3747;
$custom-light: #556d7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3747",
  "rgb": {
    "r": 11,
    "g": 55,
    "b": 71
  },
  "hsl": {
    "h": 196,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.31591,
    "c": 0.05394,
    "h": 227.1
  },
  "luminance": 0.03258
}

Semantic roles & 50–950 ramp

primary

#0B3747

secondary

#83422A

accent

#6938F0

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030709

muted

#787A7B

Preview Lab

Preview with #0B3747

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

Preview Lab → · Contrast checker → · Palette generator →