#143A75#143A75

#143A75 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.110 H 259.2°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX#143A75
RGBrgb(20, 58, 117)
HSLhsl(216, 71%, 27%)
HSVhsv(216, 83%, 46%)
CMYKcmyk(82.9%, 50.4%, 0%, 54.1%)
CIE-LABlab(25.13, 10.19, -37.66)
CIE-LCHlch(25.13, 39.02, 285.14°)
OKLaboklab(35.78% -0.0206 -0.1083)
OKLCHoklch(35.78% 0.11 259.2)
XYZxyz(5.0113, 4.4586, 17.4227)
Luminance0.0446 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143A75 #754F14
analogous
#146B75 #143A75 #1F1475
triadic
#143A75 #75143A #3A7514
tetradic
#143A75 #75146B #754F14 #14751F
square
#143A75 #75146B #754F14 #14751F
split-complementary
#143A75 #751F14 #6B7514
monochromatic
#040D1A #0B2041 #143A75 #1D54A9 #296EDA

Accessibility & contrast

On white

11.10
#143A75 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.89
#143A75 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A75
11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143A75#FFFFFF#000000##FFFFFF
##143A751.0011.101.8911.10
#FFFFFF11.101.0021.001.00
#0000001.8921.001.0021.00
##FFFFFF11.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#184077
Deuteranopia (green-blind)
#003774
Tritanopia (blue-blind)
#004852
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #143a75;
/* rgb */ color: rgb(20, 58, 117);
/* oklch */ color: oklch(35.8% 0.110 259.2);
Tailwind
colors: {
  custom: {
    50: '#636f9d',
    500: '#143a75',
    950: '#000000',
  },
}
SCSS
$custom: #143a75;
$custom-light: #636f9d;
$custom-dark: #000000;
JSON
{
  "hex": "#143a75",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 216.495,
    "s": 70.803,
    "l": 26.863
  },
  "oklch": {
    "l": 0.3578,
    "c": 0.11021,
    "h": 259.2
  },
  "luminance": 0.04459
}

Semantic roles & 50–950 ramp

primary
#143A75
secondary
#AB7F3A
accent
#A73AEE
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E

Preview Lab

Preview with #143A75

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

Preview Lab → · Contrast checker → · Palette generator →

#143A75 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva