#0D3F4B#0D3F4B

#0D3F4B is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.055 H 217.7°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX#0D3F4B
RGBrgb(13, 63, 75)
HSLhsl(192, 70%, 17%)
HSVhsv(192, 83%, 29%)
CMYKcmyk(82.7%, 16%, 0%, 70.6%)
CIE-LABlab(24.16, -11.41, -11.97)
CIE-LCHlch(24.16, 16.54, 226.35°)
OKLaboklab(34.16% -0.0431 -0.0334)
OKLCHoklch(34.16% 0.055 217.7)
XYZxyz(3.2130, 4.1482, 7.2866)
Luminance0.0415 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0D3F4B #4B190D
analogous
#0D4B38 #0D3F4B #0D204B
triadic
#0D3F4B #4B0D3F #3F4B0D
tetradic
#0D3F4B #380D4B #4B190D #204B0D
square
#0D3F4B #380D4B #4B190D #204B0D
split-complementary
#0D3F4B #4B0D20 #4B380D
monochromatic
#05161A #05161A #0D3F4B #166B7F #1F97B3

Accessibility & contrast

On white

11.48
#0D3F4B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.83
#0D3F4B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D3F4B
11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0D3F4B#FFFFFF#000000##FFFFFF
##0D3F4B1.0011.481.8311.48
#FFFFFF11.481.0021.001.00
#0000001.8321.001.0021.00
##FFFFFF11.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#373D4C
Deuteranopia (green-blind)
#2F374B
Tritanopia (blue-blind)
#004343
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #0d3f4b;
/* rgb */ color: rgb(13, 63, 75);
/* oklch */ color: oklch(34.2% 0.055 217.7);
Tailwind
colors: {
  custom: {
    50: '#57747d',
    500: '#0d3f4b',
    950: '#000000',
  },
}
SCSS
$custom: #0d3f4b;
$custom-light: #57747d;
$custom-dark: #000000;
JSON
{
  "hex": "#0d3f4b",
  "rgb": {
    "r": 13,
    "g": 63,
    "b": 75
  },
  "hsl": {
    "h": 191.613,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.34159,
    "c": 0.05457,
    "h": 217.7
  },
  "luminance": 0.04149
}

Semantic roles & 50–950 ramp

primary
#0D3F4B
secondary
#863F2E
accent
#5D3BED
background
#F5F7F7
surface
#E9EDEE
border
#C5C8C9
text
#040809
muted
#797B7B

Preview Lab

Preview with #0D3F4B

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

Preview Lab → · Contrast checker → · Palette generator →

#0D3F4B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva