#143E8A#143E8A

#143E8A is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.135 H 261.1°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX#143E8A
RGBrgb(20, 62, 138)
HSLhsl(219, 75%, 31%)
HSVhsv(219, 86%, 54%)
CMYKcmyk(85.5%, 55.1%, 0%, 45.9%)
CIE-LABlab(27.92, 16.16, -46.32)
CIE-LCHlch(27.92, 49.06, 289.24°)
OKLaboklab(38.41% -0.0208 -0.1336)
OKLCHoklch(38.41% 0.135 261.1)
XYZxyz(6.5969, 5.4281, 24.7399)
Luminance0.0543 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143E8A #8A6014
analogous
#14798A #143E8A #25148A
triadic
#143E8A #8A143E #3E8A14
tetradic
#143E8A #8A1479 #8A6014 #148A25
square
#143E8A #8A1479 #8A6014 #148A25
split-complementary
#143E8A #8A2514 #798A14
monochromatic
#050E1F #0C2655 #143E8A #1C56BF #3673E2

Accessibility & contrast

On white

10.07
#143E8A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.09
#143E8A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E8A
10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143E8A#FFFFFF#000000##FFFFFF
##143E8A1.0010.072.0910.07
#FFFFFF10.071.0021.001.00
#0000002.0921.001.0021.00
##FFFFFF10.071.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00478D
Deuteranopia (green-blind)
#003D89
Tritanopia (blue-blind)
#00515D
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #143e8a;
/* rgb */ color: rgb(20, 62, 138);
/* oklch */ color: oklch(38.4% 0.135 261.1);
Tailwind
colors: {
  custom: {
    50: '#6872ad',
    500: '#143e8a',
    950: '#000000',
  },
}
SCSS
$custom: #143e8a;
$custom-light: #6872ad;
$custom-dark: #000000;
JSON
{
  "hex": "#143e8a",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 138
  },
  "hsl": {
    "h": 218.644,
    "s": 74.684,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38413,
    "c": 0.13526,
    "h": 261.1
  },
  "luminance": 0.05429
}

Semantic roles & 50–950 ramp

primary
#143E8A
secondary
#BE903C
accent
#AF36F1
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #143E8A

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

Preview Lab → · Contrast checker → · Palette generator →

#143E8A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva