#143579#143579

#143579 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 34.9% C 0.123 H 262.5°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX#143579
RGBrgb(20, 53, 121)
HSLhsl(220, 72%, 28%)
HSVhsv(220, 83%, 47%)
CMYKcmyk(83.5%, 56.2%, 0%, 52.5%)
CIE-LABlab(23.92, 15.43, -42.16)
CIE-LCHlch(23.92, 44.90, 290.10°)
OKLaboklab(34.95% -0.0161 -0.1216)
OKLCHoklch(34.95% 0.123 262.5)
XYZxyz(5.0115, 4.0748, 18.6078)
Luminance0.0408 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143579 #795814
analogous
#146779 #143579 #251479
triadic
#143579 #791435 #357914
tetradic
#143579 #791467 #795814 #147925
square
#143579 #791467 #795814 #147925
split-complementary
#143579 #792514 #677914
monochromatic
#040C1A #0B1E44 #143579 #1D4CAE #2B65DC

Accessibility & contrast

On white

11.57
#143579 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.82
#143579 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143579
11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143579#FFFFFF#000000##FFFFFF
##1435791.0011.571.8211.57
#FFFFFF11.571.0021.001.00
#0000001.8221.001.0021.00
##FFFFFF11.571.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003E7B
Deuteranopia (green-blind)
#003478
Tritanopia (blue-blind)
#004651
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #143579;
/* rgb */ color: rgb(20, 53, 121);
/* oklch */ color: oklch(34.9% 0.123 262.5);
Tailwind
colors: {
  custom: {
    50: '#646ba0',
    500: '#143579',
    950: '#000000',
  },
}
SCSS
$custom: #143579;
$custom-light: #646ba0;
$custom-dark: #000000;
JSON
{
  "hex": "#143579",
  "rgb": {
    "r": 20,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 220.396,
    "s": 71.631,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34949,
    "c": 0.12268,
    "h": 262.5
  },
  "luminance": 0.04075
}

Semantic roles & 50–950 ramp

primary
#143579
secondary
#AF893A
accent
#B339EE
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060F
muted
#7A7A7E

Preview Lab

Preview with #143579

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

Preview Lab → · Contrast checker → · Palette generator →

#143579 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva