#143B78#143B78

#143B78 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.113 H 259.3°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX#143B78
RGBrgb(20, 59, 120)
HSLhsl(217, 71%, 27%)
HSVhsv(217, 83%, 47%)
CMYKcmyk(83.3%, 50.8%, 0%, 52.9%)
CIE-LABlab(25.66, 10.75, -38.71)
CIE-LCHlch(25.66, 40.18, 285.51°)
OKLaboklab(36.25% -0.021 -0.1113)
OKLCHoklch(36.25% 0.113 259.3)
XYZxyz(5.2414, 4.6321, 18.3835)
Luminance0.0463 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B78 #785114
analogous
#146D78 #143B78 #1F1478
triadic
#143B78 #78143B #3B7814
tetradic
#143B78 #78146D #785114 #14781F
square
#143B78 #78146D #785114 #14781F
split-complementary
#143B78 #781F14 #6D7814
monochromatic
#040D1A #0B2144 #143B78 #1D55AC #2B70DC

Accessibility & contrast

On white

10.90
#143B78 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#143B78 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B78
10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B78#FFFFFF#000000##FFFFFF
##143B781.0010.901.9310.90
#FFFFFF10.901.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.901.0021.001.00

Color blindness preview

Protanopia (red-blind)
#17427A
Deuteranopia (green-blind)
#003977
Tritanopia (blue-blind)
#004A53
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #143b78;
/* rgb */ color: rgb(20, 59, 120);
/* oklch */ color: oklch(36.3% 0.113 259.3);
Tailwind
colors: {
  custom: {
    50: '#64709f',
    500: '#143b78',
    950: '#000000',
  },
}
SCSS
$custom: #143b78;
$custom-light: #64709f;
$custom-dark: #000000;
JSON
{
  "hex": "#143b78",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 216.6,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36254,
    "c": 0.1133,
    "h": 259.3
  },
  "luminance": 0.04633
}

Semantic roles & 50–950 ramp

primary
#143B78
secondary
#AE813A
accent
#A83AEE
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E

Preview Lab

Preview with #143B78

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

Preview Lab → · Contrast checker → · Palette generator →

#143B78 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva