#0B3743#0B3743

#0B3743 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.4% C 0.051 H 220.3°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#0B3743
RGB	rgb(11, 55, 67)
HSL	hsl(193, 72%, 15%)
HSV	hsv(193, 84%, 26%)
CMYK	cmyk(83.6%, 17.9%, 0%, 73.7%)
CIE-LAB	lab(20.86, -9.85, -11.68)
CIE-LCH	lch(20.86, 15.28, 229.87°)
OKLab	oklab(31.38% -0.0385 -0.0327)
OKLCH	oklch(31.38% 0.051 220.3)
XYZ	xyz(2.5169, 3.2085, 5.7957)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3743 #43170B

analogous

#0B4333 #0B3743 #0B1B43

triadic

#0B3743 #430B37 #37430B

tetradic

#0B3743 #330B43 #43170B #1B430B

square

#0B3743 #330B43 #43170B #1B430B

split-complementary

#0B3743 #430B1B #43330B

monochromatic

#04161A #04161A #0B3743 #146278 #1C8DAC

Accessibility & contrast

On white

12.79

#0B3743 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#0B3743 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3743

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3743	#FFFFFF	#000000	##FFFFFF
##0B3743	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303544

Deuteranopia (green-blind)

#283043

Tritanopia (blue-blind)

#003B3B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #0b3743;
/* rgb */ color: rgb(11, 55, 67);
/* oklch */ color: oklch(31.4% 0.051 220.3);

Tailwind

colors: {
  custom: {
    50: '#546d77',
    500: '#0b3743',
    950: '#000000',
  },
}

SCSS

$custom: #0b3743;
$custom-light: #546d77;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3743",
  "rgb": {
    "r": 11,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 192.857,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.31377,
    "c": 0.0505,
    "h": 220.3
  },
  "luminance": 0.03209
}

Semantic roles & 50–950 ramp

primary

#0B3743

secondary

#803D2A

accent

#6039EF

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0B3743

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

Preview Lab → · Contrast checker → · Palette generator →