#143B7F#143B7F

#143B7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.123 H 260.7°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX#143B7F
RGBrgb(20, 59, 127)
HSLhsl(218, 73%, 29%)
HSVhsv(218, 84%, 50%)
CMYKcmyk(84.3%, 53.5%, 0%, 50.2%)
CIE-LABlab(26.18, 13.69, -42.28)
CIE-LCHlch(26.18, 44.44, 287.94°)
OKLaboklab(36.82% -0.0199 -0.1218)
OKLCHoklch(36.82% 0.123 260.7)
XYZxyz(5.6818, 4.8083, 20.7032)
Luminance0.0481 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B7F #7F5814
analogous
#14717F #143B7F #23147F
triadic
#143B7F #7F143B #3B7F14
tetradic
#143B7F #7F1471 #7F5814 #147F23
square
#143B7F #7F1471 #7F5814 #147F23
split-complementary
#143B7F #7F2314 #717F14
monochromatic
#040C1A #0C224A #143B7F #1C54B4 #2F6FDE

Accessibility & contrast

On white

10.70
#143B7F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#143B7F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B7F
10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B7F#FFFFFF#000000##FFFFFF
##143B7F1.0010.701.9610.70
#FFFFFF10.701.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0C4381
Deuteranopia (green-blind)
#00397E
Tritanopia (blue-blind)
#004C57
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #143b7f;
/* rgb */ color: rgb(20, 59, 127);
/* oklch */ color: oklch(36.8% 0.123 260.7);
Tailwind
colors: {
  custom: {
    50: '#6570a5',
    500: '#143b7f',
    950: '#000000',
  },
}
SCSS
$custom: #143b7f;
$custom-light: #6570a5;
$custom-dark: #000000;
JSON
{
  "hex": "#143b7f",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 218.131,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3682,
    "c": 0.12346,
    "h": 260.7
  },
  "luminance": 0.04809
}

Semantic roles & 50–950 ramp

primary
#143B7F
secondary
#B4883B
accent
#AD38EF
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #143B7F

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

Preview Lab → · Contrast checker → · Palette generator →

#143B7F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva