#0C3F4B#0C3F4B

#0C3F4B is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.1% C 0.055 H 217.5°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#0C3F4B
RGB	rgb(12, 63, 75)
HSL	hsl(191, 72%, 17%)
HSV	hsv(191, 84%, 29%)
CMYK	cmyk(84%, 16%, 0%, 70.6%)
CIE-LAB	lab(24.13, -11.55, -12.00)
CIE-LCH	lch(24.13, 16.66, 226.10°)
OKLab	oklab(34.13% -0.0436 -0.0335)
OKLCH	oklch(34.13% 0.055 217.5)
XYZ	xyz(3.1986, 4.1408, 7.2859)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C3F4B #4B180C

analogous

#0C4B38 #0C3F4B #0C1F4B

triadic

#0C3F4B #4B0C3F #3F4B0C

tetradic

#0C3F4B #380C4B #4B180C #1F4B0C

square

#0C3F4B #380C4B #4B180C #1F4B0C

split-complementary

#0C3F4B #4B0C1F #4B380C

monochromatic

#04161A #04161A #0C3F4B #146B80 #1D98B5

Accessibility & contrast

On white

11.49

#0C3F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#0C3F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C3F4B

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C3F4B	#FFFFFF	#000000	##FFFFFF
##0C3F4B	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4C

Deuteranopia (green-blind)

#2F374B

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0c3f4b;
/* rgb */ color: rgb(12, 63, 75);
/* oklch */ color: oklch(34.1% 0.055 217.5);

Tailwind

colors: {
  custom: {
    50: '#57747d',
    500: '#0c3f4b',
    950: '#000000',
  },
}

SCSS

$custom: #0c3f4b;
$custom-light: #57747d;
$custom-dark: #000000;

JSON

{
  "hex": "#0c3f4b",
  "rgb": {
    "r": 12,
    "g": 63,
    "b": 75
  },
  "hsl": {
    "h": 191.429,
    "s": 72.414,
    "l": 17.059
  },
  "oklch": {
    "l": 0.34133,
    "c": 0.05503,
    "h": 217.5
  },
  "luminance": 0.04141
}

Semantic roles & 50–950 ramp

primary

#0C3F4B

secondary

#873D2C

accent

#5B39EF

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #0C3F4B

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

Preview Lab → · Contrast checker → · Palette generator →