#143C87#143C87

#143C87 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.134 H 261.5°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX#143C87
RGBrgb(20, 60, 135)
HSLhsl(219, 74%, 30%)
HSVhsv(219, 85%, 53%)
CMYKcmyk(85.2%, 55.6%, 0%, 47.1%)
CIE-LABlab(27.10, 16.32, -45.79)
CIE-LCHlch(27.10, 48.61, 289.62°)
OKLaboklab(37.71% -0.0197 -0.1321)
OKLCHoklch(37.71% 0.134 261.5)
XYZxyz(6.2759, 5.1289, 23.5762)
Luminance0.0513 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143C87 #875F14
analogous
#147687 #143C87 #251487
triadic
#143C87 #87143C #3C8714
tetradic
#143C87 #871476 #875F14 #148725
square
#143C87 #871476 #875F14 #148725
split-complementary
#143C87 #872514 #768714
monochromatic
#040D1C #0C2452 #143C87 #1C54BC #3470E1

Accessibility & contrast

On white

10.37
#143C87 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.03
#143C87 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C87
10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143C87#FFFFFF#000000##FFFFFF
##143C871.0010.372.0310.37
#FFFFFF10.371.0021.001.00
#0000002.0321.001.0021.00
##FFFFFF10.371.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00458A
Deuteranopia (green-blind)
#003B86
Tritanopia (blue-blind)
#004F5B
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #143c87;
/* rgb */ color: rgb(20, 60, 135);
/* oklch */ color: oklch(37.7% 0.134 261.5);
Tailwind
colors: {
  custom: {
    50: '#6871ab',
    500: '#143c87',
    950: '#000000',
  },
}
SCSS
$custom: #143c87;
$custom-light: #6871ab;
$custom-dark: #000000;
JSON
{
  "hex": "#143c87",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 219.13,
    "s": 74.194,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37714,
    "c": 0.13361,
    "h": 261.5
  },
  "luminance": 0.0513
}

Semantic roles & 50–950 ramp

primary
#143C87
secondary
#BB8F3B
accent
#B037F1
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #143C87

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

Preview Lab → · Contrast checker → · Palette generator →

#143C87 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva