#143981#143981

#143981 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.129 H 261.9°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX#143981
RGBrgb(20, 57, 129)
HSLhsl(220, 73%, 29%)
HSVhsv(220, 84%, 51%)
CMYKcmyk(84.5%, 55.8%, 0%, 49.4%)
CIE-LABlab(25.74, 15.94, -44.25)
CIE-LCHlch(25.74, 47.03, 289.81°)
OKLaboklab(36.53% -0.0182 -0.1277)
OKLCHoklch(36.53% 0.129 261.9)
XYZxyz(5.7126, 4.6593, 21.3629)
Luminance0.0466 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143981 #815C14
analogous
#147081 #143981 #261481
triadic
#143981 #811439 #398114
tetradic
#143981 #811470 #815C14 #148126
square
#143981 #811470 #815C14 #148126
split-complementary
#143981 #812614 #708114
monochromatic
#040C1A #0C224C #143981 #1C50B6 #306CDF

Accessibility & contrast

On white

10.87
#143981 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#143981 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143981
10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143981#FFFFFF#000000##FFFFFF
##1439811.0010.871.9310.87
#FFFFFF10.871.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.871.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004284
Deuteranopia (green-blind)
#003880
Tritanopia (blue-blind)
#004B57
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #143981;
/* rgb */ color: rgb(20, 57, 129);
/* oklch */ color: oklch(36.5% 0.129 261.9);
Tailwind
colors: {
  custom: {
    50: '#666ea6',
    500: '#143981',
    950: '#000000',
  },
}
SCSS
$custom: #143981;
$custom-light: #666ea6;
$custom-dark: #000000;
JSON
{
  "hex": "#143981",
  "rgb": {
    "r": 20,
    "g": 57,
    "b": 129
  },
  "hsl": {
    "h": 219.633,
    "s": 73.154,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36534,
    "c": 0.12896,
    "h": 261.9
  },
  "luminance": 0.0466
}

Semantic roles & 50–950 ramp

primary
#143981
secondary
#B68C3B
accent
#B138F0
background
#F6F6FA
surface
#EBEBF4
border
#C6C6CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #143981

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

Preview Lab → · Contrast checker → · Palette generator →

#143981 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva