#143B7E#143B7E

#143B7E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.7% C 0.122 H 260.5°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX#143B7E
RGBrgb(20, 59, 126)
HSLhsl(218, 73%, 29%)
HSVhsv(218, 84%, 49%)
CMYKcmyk(84.1%, 53.2%, 0%, 50.6%)
CIE-LABlab(26.11, 13.27, -41.78)
CIE-LCHlch(26.11, 43.83, 287.62°)
OKLaboklab(36.74% -0.0201 -0.1203)
OKLCHoklch(36.74% 0.122 260.5)
XYZxyz(5.6170, 4.7823, 20.3617)
Luminance0.0478 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B7E #7E5714
analogous
#14707E #143B7E #22147E
triadic
#143B7E #7E143B #3B7E14
tetradic
#143B7E #7E1470 #7E5714 #147E22
square
#143B7E #7E1470 #7E5714 #147E22
split-complementary
#143B7E #7E2214 #707E14
monochromatic
#040C1A #0C2249 #143B7E #1C54B3 #2E6FDE

Accessibility & contrast

On white

10.73
#143B7E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#143B7E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B7E
10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B7E#FFFFFF#000000##FFFFFF
##143B7E1.0010.731.9610.73
#FFFFFF10.731.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.731.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0E4380
Deuteranopia (green-blind)
#00397D
Tritanopia (blue-blind)
#004B56
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #143b7e;
/* rgb */ color: rgb(20, 59, 126);
/* oklch */ color: oklch(36.7% 0.122 260.5);
Tailwind
colors: {
  custom: {
    50: '#6570a4',
    500: '#143b7e',
    950: '#000000',
  },
}
SCSS
$custom: #143b7e;
$custom-light: #6570a4;
$custom-dark: #000000;
JSON
{
  "hex": "#143b7e",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 217.925,
    "s": 72.603,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36738,
    "c": 0.12201,
    "h": 260.5
  },
  "luminance": 0.04783
}

Semantic roles & 50–950 ramp

primary
#143B7E
secondary
#B3873A
accent
#AC38EF
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #143B7E

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

Preview Lab → · Contrast checker → · Palette generator →

#143B7E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva