#143B8D#143B8D

#143B8D is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.143 H 262.6°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX#143B8D
RGBrgb(20, 59, 141)
HSLhsl(221, 75%, 32%)
HSVhsv(221, 86%, 55%)
CMYKcmyk(85.8%, 58.2%, 0%, 44.7%)
CIE-LABlab(27.29, 19.50, -49.19)
CIE-LCHlch(27.29, 52.92, 291.63°)
OKLaboklab(38.01% -0.0185 -0.1421)
OKLCHoklch(38.01% 0.143 262.6)
XYZxyz(6.6584, 5.1989, 25.8467)
Luminance0.0520 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B8D #8D6614
analogous
#14788D #143B8D #2A148D
triadic
#143B8D #8D143B #3B8D14
tetradic
#143B8D #8D1478 #8D6614 #148D2A
square
#143B8D #8D1478 #8D6614 #148D2A
split-complementary
#143B8D #8D2A14 #788D14
monochromatic
#050E22 #0C2557 #143B8D #1C51C3 #396FE3

Accessibility & contrast

On white

10.29
#143B8D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#143B8D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B8D
10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B8D#FFFFFF#000000##FFFFFF
##143B8D1.0010.292.0410.29
#FFFFFF10.291.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004690
Deuteranopia (green-blind)
#003B8B
Tritanopia (blue-blind)
#00505E
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #143b8d;
/* rgb */ color: rgb(20, 59, 141);
/* oklch */ color: oklch(38.0% 0.143 262.6);
Tailwind
colors: {
  custom: {
    50: '#6970af',
    500: '#143b8d',
    950: '#000000',
  },
}
SCSS
$custom: #143b8d;
$custom-light: #6970af;
$custom-dark: #000000;
JSON
{
  "hex": "#143b8d",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 220.661,
    "s": 75.155,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38014,
    "c": 0.14335,
    "h": 262.6
  },
  "luminance": 0.052
}

Semantic roles & 50–950 ramp

primary
#143B8D
secondary
#C1963C
accent
#B536F2
background
#F6F6FA
surface
#ECECF5
border
#C7C7CF
text
#080710
muted
#7A7A7F

Preview Lab

Preview with #143B8D

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

Preview Lab → · Contrast checker → · Palette generator →

#143B8D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva