#143D80#143D80

#143D80 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.4% C 0.122 H 259.9°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX#143D80
RGBrgb(20, 61, 128)
HSLhsl(217, 73%, 29%)
HSVhsv(217, 84%, 50%)
CMYKcmyk(84.4%, 52.3%, 0%, 49.8%)
CIE-LABlab(26.86, 12.70, -41.81)
CIE-LCHlch(26.86, 43.69, 286.89°)
OKLaboklab(37.36% -0.0214 -0.1204)
OKLCHoklch(37.36% 0.122 259.9)
XYZxyz(5.8521, 5.0440, 21.0830)
Luminance0.0505 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143D80 #805714
analogous
#147380 #143D80 #211480
triadic
#143D80 #80143D #3D8014
tetradic
#143D80 #801473 #805714 #148021
square
#143D80 #801473 #805714 #148021
split-complementary
#143D80 #802114 #738014
monochromatic
#040D1A #0C244B #143D80 #1C56B5 #3072DF

Accessibility & contrast

On white

10.45
#143D80 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.01
#143D80 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D80
10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143D80#FFFFFF#000000##FFFFFF
##143D801.0010.452.0110.45
#FFFFFF10.451.0021.001.00
#0000002.0121.001.0021.00
##FFFFFF10.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#124582
Deuteranopia (green-blind)
#003B7F
Tritanopia (blue-blind)
#004D58
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #143d80;
/* rgb */ color: rgb(20, 61, 128);
/* oklch */ color: oklch(37.4% 0.122 259.9);
Tailwind
colors: {
  custom: {
    50: '#6671a5',
    500: '#143d80',
    950: '#000000',
  },
}
SCSS
$custom: #143d80;
$custom-light: #6671a5;
$custom-dark: #000000;
JSON
{
  "hex": "#143d80",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 217.222,
    "s": 72.973,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37362,
    "c": 0.12229,
    "h": 259.9
  },
  "luminance": 0.05045
}

Semantic roles & 50–950 ramp

primary
#143D80
secondary
#B5873B
accent
#AA38F0
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #143D80

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

Preview Lab → · Contrast checker → · Palette generator →

#143D80 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva