#143C84#143C84

#143C84 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.129 H 261.1°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#143C84
RGB	rgb(20, 60, 132)
HSL	hsl(219, 74%, 30%)
HSV	hsv(219, 85%, 52%)
CMYK	cmyk(84.8%, 54.5%, 0%, 48.2%)
CIE-LAB	lab(26.86, 15.07, -44.30)
CIE-LCH	lch(26.86, 46.80, 288.79°)
OKLab	oklab(37.46% -0.0201 -0.1278)
OKLCH	oklch(37.46% 0.129 261.1)
XYZ	xyz(6.0677, 5.0456, 22.4794)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C84 #845C14

analogous

#147484 #143C84 #241484

triadic

#143C84 #84143C #3C8414

tetradic

#143C84 #841474 #845C14 #148424

square

#143C84 #841474 #845C14 #148424

split-complementary

#143C84 #842414 #748414

monochromatic

#040C1B #0C244F #143C84 #1C54B9 #3270E0

Accessibility & contrast

On white

10.45

#143C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#143C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C84

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C84	#FFFFFF	#000000	##FFFFFF
##143C84	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044587

Deuteranopia (green-blind)

#003B83

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143c84;
/* rgb */ color: rgb(20, 60, 132);
/* oklch */ color: oklch(37.5% 0.129 261.1);

Tailwind

colors: {
  custom: {
    50: '#6771a8',
    500: '#143c84',
    950: '#000000',
  },
}

SCSS

$custom: #143c84;
$custom-light: #6771a8;
$custom-dark: #000000;

JSON

{
  "hex": "#143c84",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 132
  },
  "hsl": {
    "h": 218.571,
    "s": 73.684,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37462,
    "c": 0.12933,
    "h": 261.1
  },
  "luminance": 0.05046
}

Semantic roles & 50–950 ramp

primary

#143C84

secondary

#B98C3B

accent

#AE37F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143C84

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

Preview Lab → · Contrast checker → · Palette generator →