#143D66#143D66

#143D66 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.085 H 251.5°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX#143D66
RGBrgb(20, 61, 102)
HSLhsl(210, 67%, 24%)
HSVhsv(210, 80%, 40%)
CMYKcmyk(80.4%, 40.2%, 0%, 60%)
CIE-LABlab(25.09, 1.80, -28.13)
CIE-LCHlch(25.09, 28.19, 273.65°)
OKLaboklab(35.43% -0.0268 -0.0802)
OKLCHoklch(35.43% 0.085 251.5)
XYZxyz(4.3546, 4.4450, 13.1963)
Luminance0.0445 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143D66 #663D14
analogous
#146666 #143D66 #141466
triadic
#143D66 #66143D #3D6614
tetradic
#143D66 #661466 #663D14 #146614
square
#143D66 #661466 #663D14 #146614
split-complementary
#143D66 #661414 #666614
monochromatic
#050F1A #0A1E33 #143D66 #1E5C99 #287ACC

Accessibility & contrast

On white

11.12
#143D66 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.89
#143D66 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D66
11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143D66#FFFFFF#000000##FFFFFF
##143D661.0011.121.8911.12
#FFFFFF11.121.0021.001.00
#0000001.8921.001.0021.00
##FFFFFF11.121.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A4068
Deuteranopia (green-blind)
#1D3865
Tritanopia (blue-blind)
#00474C
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #143d66;
/* rgb */ color: rgb(20, 61, 102);
/* oklch */ color: oklch(35.4% 0.085 251.5);
Tailwind
colors: {
  custom: {
    50: '#5f7292',
    500: '#143d66',
    950: '#000000',
  },
}
SCSS
$custom: #143d66;
$custom-light: #5f7292;
$custom-dark: #000000;
JSON
{
  "hex": "#143d66",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 210,
    "s": 67.213,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35425,
    "c": 0.08456,
    "h": 251.5
  },
  "luminance": 0.04446
}

Semantic roles & 50–950 ramp

primary
#143D66
secondary
#9D6B39
accent
#943EEA
background
#F5F6F9
surface
#EAECF1
border
#C6C7CB
text
#05070D
muted
#797A7E

Preview Lab

Preview with #143D66

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

Preview Lab → · Contrast checker → · Palette generator →

#143D66 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva