#143F7C#143F7C

#143F7C is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.114 H 258.0°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX#143F7C
RGBrgb(20, 63, 124)
HSLhsl(215, 72%, 28%)
HSVhsv(215, 84%, 49%)
CMYKcmyk(83.9%, 49.2%, 0%, 51.4%)
CIE-LABlab(27.18, 9.62, -38.78)
CIE-LCHlch(27.18, 39.96, 283.93°)
OKLaboklab(37.52% -0.0236 -0.1115)
OKLCHoklch(37.52% 0.114 258)
XYZxyz(5.7027, 5.1583, 19.7600)
Luminance0.0516 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F7C #7C5114
analogous
#14737C #143F7C #1D147C
triadic
#143F7C #7C143F #3F7C14
tetradic
#143F7C #7C1473 #7C5114 #147C1D
square
#143F7C #7C1473 #7C5114 #147C1D
split-complementary
#143F7C #7C1D14 #737C14
monochromatic
#040D1A #0B2447 #143F7C #1D5AB1 #2D76DD

Accessibility & contrast

On white

10.34
#143F7C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.03
#143F7C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F7C
10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F7C#FFFFFF#000000##FFFFFF
##143F7C1.0010.342.0310.34
#FFFFFF10.341.0021.001.00
#0000002.0321.001.0021.00
##FFFFFF10.341.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1D457E
Deuteranopia (green-blind)
#003C7B
Tritanopia (blue-blind)
#004E57
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #143f7c;
/* rgb */ color: rgb(20, 63, 124);
/* oklch */ color: oklch(37.5% 0.114 258.0);
Tailwind
colors: {
  custom: {
    50: '#6473a2',
    500: '#143f7c',
    950: '#000000',
  },
}
SCSS
$custom: #143f7c;
$custom-light: #6473a2;
$custom-dark: #000000;
JSON
{
  "hex": "#143f7c",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 124
  },
  "hsl": {
    "h": 215.192,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37516,
    "c": 0.11394,
    "h": 258
  },
  "luminance": 0.05159
}

Semantic roles & 50–950 ramp

primary
#143F7C
secondary
#B2803A
accent
#A439EF
background
#F6F6FA
surface
#EBECF3
border
#C6C7CD
text
#06080F
muted
#7A7B7F

Preview Lab

Preview with #143F7C

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

Preview Lab → · Contrast checker → · Palette generator →

#143F7C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva