#143F66#143F66

#143F66 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.082 H 249.5°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX#143F66
RGBrgb(20, 63, 102)
HSLhsl(209, 67%, 24%)
HSVhsv(209, 80%, 40%)
CMYKcmyk(80.4%, 38.2%, 0%, 60%)
CIE-LABlab(25.75, 0.43, -27.08)
CIE-LCHlch(25.75, 27.09, 270.91°)
OKLaboklab(35.94% -0.0289 -0.0771)
OKLCHoklch(35.94% 0.082 249.5)
XYZxyz(4.4634, 4.6625, 13.2325)
Luminance0.0466 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F66 #663B14
analogous
#146664 #143F66 #141666
triadic
#143F66 #66143F #3F6614
tetradic
#143F66 #641466 #663B14 #166614
square
#143F66 #641466 #663B14 #166614
split-complementary
#143F66 #661416 #666414
monochromatic
#05101A #0A1F33 #143F66 #1E5F99 #287ECC

Accessibility & contrast

On white

10.87
#143F66 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#143F66 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F66
10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F66#FFFFFF#000000##FFFFFF
##143F661.0010.871.9310.87
#FFFFFF10.871.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.871.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2D4168
Deuteranopia (green-blind)
#213A65
Tritanopia (blue-blind)
#00484D
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #143f66;
/* rgb */ color: rgb(20, 63, 102);
/* oklch */ color: oklch(35.9% 0.082 249.5);
Tailwind
colors: {
  custom: {
    50: '#5f7392',
    500: '#143f66',
    950: '#000000',
  },
}
SCSS
$custom: #143f66;
$custom-light: #5f7392;
$custom-dark: #000000;
JSON
{
  "hex": "#143f66",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 208.537,
    "s": 67.213,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35942,
    "c": 0.08231,
    "h": 249.5
  },
  "luminance": 0.04663
}

Semantic roles & 50–950 ramp

primary
#143F66
secondary
#9D6839
accent
#903EEA
background
#F5F6F9
surface
#EAECF1
border
#C6C7CB
text
#05080D
muted
#797B7E

Preview Lab

Preview with #143F66

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

Preview Lab → · Contrast checker → · Palette generator →

#143F66 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva