#0A3747#0A3747

#0A3747 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.6% C 0.054 H 226.8°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX#0A3747
RGBrgb(10, 55, 71)
HSLhsl(196, 75%, 16%)
HSVhsv(196, 86%, 28%)
CMYKcmyk(85.9%, 22.5%, 0%, 72.2%)
CIE-LABlab(21.02, -8.39, -14.13)
CIE-LCHlch(21.02, 16.43, 239.29°)
OKLaboklab(31.56% -0.0372 -0.0396)
OKLCHoklch(31.56% 0.054 226.8)
XYZxyz(2.6282, 3.2515, 6.4491)
Luminance0.0325 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0A3747 #471A0A
analogous
#0A4738 #0A3747 #0A1847
triadic
#0A3747 #470A37 #37470A
tetradic
#0A3747 #380A47 #471A0A #18470A
square
#0A3747 #380A47 #471A0A #18470A
split-complementary
#0A3747 #470A18 #47380A
monochromatic
#04151B #04151B #0A3747 #12617D #198AB2

Accessibility & contrast

On white

12.72
#0A3747 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.65
#0A3747 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3747
12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0A3747#FFFFFF#000000##FFFFFF
##0A37471.0012.721.6512.72
#FFFFFF12.721.0021.001.00
#0000001.6521.001.0021.00
##FFFFFF12.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2E3648
Deuteranopia (green-blind)
#263047
Tritanopia (blue-blind)
#003C3C
Achromatopsia (no color)
#333333

Design tokens & code

CSS
--color: #0a3747;
/* rgb */ color: rgb(10, 55, 71);
/* oklch */ color: oklch(31.6% 0.054 226.8);
Tailwind
colors: {
  custom: {
    50: '#556d7a',
    500: '#0a3747',
    950: '#000000',
  },
}
SCSS
$custom: #0a3747;
$custom-light: #556d7a;
$custom-dark: #000000;
JSON
{
  "hex": "#0a3747",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 71
  },
  "hsl": {
    "h": 195.738,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.31564,
    "c": 0.05437,
    "h": 226.8
  },
  "luminance": 0.03252
}

Semantic roles & 50–950 ramp

primary
#0A3747
secondary
#844129
accent
#6736F2
background
#F5F6F7
surface
#E9EBED
border
#C5C6C8
text
#030709
muted
#787A7B

Preview Lab

Preview with #0A3747

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

Preview Lab → · Contrast checker → · Palette generator →

#0A3747 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva