#143C66#143C66

#143C66 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.2% C 0.086 H 252.5°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX#143C66
RGBrgb(20, 60, 102)
HSLhsl(211, 67%, 24%)
HSVhsv(211, 80%, 40%)
CMYKcmyk(80.4%, 41.2%, 0%, 60%)
CIE-LABlab(24.76, 2.48, -28.65)
CIE-LCHlch(24.76, 28.76, 274.95°)
OKLaboklab(35.17% -0.0258 -0.0817)
OKLCHoklch(35.17% 0.086 252.5)
XYZxyz(4.3017, 4.3393, 13.1786)
Luminance0.0434 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143C66 #663E14
analogous
#146566 #143C66 #151466
triadic
#143C66 #66143C #3C6614
tetradic
#143C66 #661465 #663E14 #146615
square
#143C66 #661465 #663E14 #146615
split-complementary
#143C66 #661514 #656614
monochromatic
#050F1A #0A1E33 #143C66 #1E5A99 #2878CC

Accessibility & contrast

On white

11.24
#143C66 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.87
#143C66 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C66
11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143C66#FFFFFF#000000##FFFFFF
##143C661.0011.241.8711.24
#FFFFFF11.241.0021.001.00
#0000001.8721.001.0021.00
##FFFFFF11.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#283F68
Deuteranopia (green-blind)
#1B3765
Tritanopia (blue-blind)
#00464C
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #143c66;
/* rgb */ color: rgb(20, 60, 102);
/* oklch */ color: oklch(35.2% 0.086 252.5);
Tailwind
colors: {
  custom: {
    50: '#5f7192',
    500: '#143c66',
    950: '#000000',
  },
}
SCSS
$custom: #143c66;
$custom-light: #5f7192;
$custom-dark: #000000;
JSON
{
  "hex": "#143c66",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 102
  },
  "hsl": {
    "h": 210.732,
    "s": 67.213,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35168,
    "c": 0.08572,
    "h": 252.5
  },
  "luminance": 0.0434
}

Semantic roles & 50–950 ramp

primary
#143C66
secondary
#9D6C39
accent
#963EEA
background
#F5F6F9
surface
#EAECF1
border
#C6C7CB
text
#05070D
muted
#797A7E

Preview Lab

Preview with #143C66

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

Preview Lab → · Contrast checker → · Palette generator →

#143C66 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva