#143F87#143F87

#143F87 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.4% C 0.130 H 260.3°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX#143F87
RGBrgb(20, 63, 135)
HSLhsl(218, 74%, 30%)
HSVhsv(218, 85%, 53%)
CMYKcmyk(85.2%, 53.3%, 0%, 47.1%)
CIE-LABlab(27.99, 14.22, -44.35)
CIE-LCHlch(27.99, 46.57, 287.77°)
OKLaboklab(38.39% -0.0219 -0.1278)
OKLCHoklch(38.39% 0.13 260.3)
XYZxyz(6.4376, 5.4522, 23.6301)
Luminance0.0545 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F87 #875C14
analogous
#147987 #143F87 #221487
triadic
#143F87 #87143F #3F8714
tetradic
#143F87 #871479 #875C14 #148722
square
#143F87 #871479 #875C14 #148722
split-complementary
#143F87 #872214 #798714
monochromatic
#040D1C #0C2652 #143F87 #1C58BC #3475E1

Accessibility & contrast

On white

10.04
#143F87 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.09
#143F87 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F87
10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F87#FFFFFF#000000##FFFFFF
##143F871.0010.042.0910.04
#FFFFFF10.041.0021.001.00
#0000002.0921.001.0021.00
##FFFFFF10.041.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0C488A
Deuteranopia (green-blind)
#003D86
Tritanopia (blue-blind)
#00515C
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #143f87;
/* rgb */ color: rgb(20, 63, 135);
/* oklch */ color: oklch(38.4% 0.130 260.3);
Tailwind
colors: {
  custom: {
    50: '#6773aa',
    500: '#143f87',
    950: '#000000',
  },
}
SCSS
$custom: #143f87;
$custom-light: #6773aa;
$custom-dark: #000000;
JSON
{
  "hex": "#143f87",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 135
  },
  "hsl": {
    "h": 217.565,
    "s": 74.194,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3839,
    "c": 0.12971,
    "h": 260.3
  },
  "luminance": 0.05453
}

Semantic roles & 50–950 ramp

primary
#143F87
secondary
#BB8C3B
accent
#AB37F1
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070810
muted
#7A7B7F

Preview Lab

Preview with #143F87

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

Preview Lab → · Contrast checker → · Palette generator →

#143F87 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva