#143E81#143E81

#143E81 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.7% C 0.122 H 259.7°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX#143E81
RGBrgb(20, 62, 129)
HSLhsl(217, 73%, 29%)
HSVhsv(217, 84%, 51%)
CMYKcmyk(84.5%, 51.9%, 0%, 49.4%)
CIE-LABlab(27.24, 12.41, -41.83)
CIE-LCHlch(27.24, 43.63, 286.53°)
OKLaboklab(37.67% -0.022 -0.1204)
OKLCHoklch(37.67% 0.122 259.7)
XYZxyz(5.9721, 5.1782, 21.4494)
Luminance0.0518 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143E81 #815714
analogous
#147581 #143E81 #211481
triadic
#143E81 #81143E #3E8114
tetradic
#143E81 #811475 #815714 #148121
square
#143E81 #811475 #815714 #148121
split-complementary
#143E81 #812114 #758114
monochromatic
#040D1A #0C254C #143E81 #1C57B6 #3074DF

Accessibility & contrast

On white

10.32
#143E81 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#143E81 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E81
10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143E81#FFFFFF#000000##FFFFFF
##143E811.0010.322.0410.32
#FFFFFF10.321.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#144683
Deuteranopia (green-blind)
#003C80
Tritanopia (blue-blind)
#004E59
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #143e81;
/* rgb */ color: rgb(20, 62, 129);
/* oklch */ color: oklch(37.7% 0.122 259.7);
Tailwind
colors: {
  custom: {
    50: '#6672a6',
    500: '#143e81',
    950: '#000000',
  },
}
SCSS
$custom: #143e81;
$custom-light: #6672a6;
$custom-dark: #000000;
JSON
{
  "hex": "#143e81",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 216.881,
    "s": 73.154,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37674,
    "c": 0.12242,
    "h": 259.7
  },
  "luminance": 0.05179
}

Semantic roles & 50–950 ramp

primary
#143E81
secondary
#B6873B
accent
#A938F0
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #143E81

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

Preview Lab → · Contrast checker → · Palette generator →

#143E81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva