#143B8F#143B8F

#143B8F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.146 H 262.8°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX#143B8F
RGBrgb(20, 59, 143)
HSLhsl(221, 75%, 32%)
HSVhsv(221, 86%, 56%)
CMYKcmyk(86%, 58.7%, 0%, 43.9%)
CIE-LABlab(27.46, 20.33, -50.15)
CIE-LCHlch(27.46, 54.12, 292.06°)
OKLaboklab(38.19% -0.0184 -0.145)
OKLCHoklch(38.19% 0.146 262.8)
XYZxyz(6.8086, 5.2590, 26.6375)
Luminance0.0526 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B8F #8F6814
analogous
#14788F #143B8F #2B148F
triadic
#143B8F #8F143B #3B8F14
tetradic
#143B8F #8F1478 #8F6814 #148F2B
square
#143B8F #8F1478 #8F6814 #148F2B
split-complementary
#143B8F #8F2B14 #788F14
monochromatic
#050F24 #0C2559 #143B8F #1C51C5 #3A70E3

Accessibility & contrast

On white

10.23
#143B8F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.05
#143B8F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B8F
10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B8F#FFFFFF#000000##FFFFFF
##143B8F1.0010.232.0510.23
#FFFFFF10.231.0021.001.00
#0000002.0521.001.0021.00
##FFFFFF10.231.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004792
Deuteranopia (green-blind)
#003B8D
Tritanopia (blue-blind)
#00505F
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #143b8f;
/* rgb */ color: rgb(20, 59, 143);
/* oklch */ color: oklch(38.2% 0.146 262.8);
Tailwind
colors: {
  custom: {
    50: '#6a70b1',
    500: '#143b8f',
    950: '#000000',
  },
}
SCSS
$custom: #143b8f;
$custom-light: #6a70b1;
$custom-dark: #000000;
JSON
{
  "hex": "#143b8f",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 143
  },
  "hsl": {
    "h": 220.976,
    "s": 75.46,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38192,
    "c": 0.14614,
    "h": 262.8
  },
  "luminance": 0.0526
}

Semantic roles & 50–950 ramp

primary
#143B8F
secondary
#C3983C
accent
#B636F2
background
#F6F6FB
surface
#ECECF6
border
#C7C7D0
text
#080711
muted
#7A7A80

Preview Lab

Preview with #143B8F

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

Preview Lab → · Contrast checker → · Palette generator →

#143B8F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva