#0B3749#0B3749

#0B3749 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.7% C 0.056 H 230.2°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#0B3749
RGB	rgb(11, 55, 73)
HSL	hsl(197, 74%, 16%)
HSV	hsv(197, 85%, 29%)
CMYK	cmyk(84.9%, 24.7%, 0%, 71.4%)
CIE-LAB	lab(21.15, -7.44, -15.28)
CIE-LCH	lch(21.15, 16.99, 244.03°)
OKLab	oklab(31.7% -0.0358 -0.0429)
OKLCH	oklch(31.7% 0.056 230.2)
XYZ	xyz(2.7063, 3.2842, 6.7933)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3749 #491D0B

analogous

#0B493C #0B3749 #0B1849

triadic

#0B3749 #490B37 #37490B

tetradic

#0B3749 #3C0B49 #491D0B #18490B

square

#0B3749 #3C0B49 #491D0B #18490B

split-complementary

#0B3749 #490B18 #493C0B

monochromatic

#04141B #04141B #0B3749 #135F7E #1B87B3

Accessibility & contrast

On white

12.67

#0B3749 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#0B3749 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3749

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3749	#FFFFFF	#000000	##FFFFFF
##0B3749	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E364A

Deuteranopia (green-blind)

#253049

Tritanopia (blue-blind)

#003C3D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0b3749;
/* rgb */ color: rgb(11, 55, 73);
/* oklch */ color: oklch(31.7% 0.056 230.2);

Tailwind

colors: {
  custom: {
    50: '#556d7b',
    500: '#0b3749',
    950: '#000000',
  },
}

SCSS

$custom: #0b3749;
$custom-light: #556d7b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3749",
  "rgb": {
    "r": 11,
    "g": 55,
    "b": 73
  },
  "hsl": {
    "h": 197.419,
    "s": 73.81,
    "l": 16.471
  },
  "oklch": {
    "l": 0.31702,
    "c": 0.05593,
    "h": 230.2
  },
  "luminance": 0.03285
}

Semantic roles & 50–950 ramp

primary

#0B3749

secondary

#85452A

accent

#6D37F0

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0B3749

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

Preview Lab → · Contrast checker → · Palette generator →