#143D87#143D87

#143D87 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.9% C 0.132 H 261.1°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#143D87
RGB	rgb(20, 61, 135)
HSL	hsl(219, 74%, 30%)
HSV	hsv(219, 85%, 53%)
CMYK	cmyk(85.2%, 54.8%, 0%, 47.1%)
CIE-LAB	lab(27.39, 15.62, -45.31)
CIE-LCH	lch(27.39, 47.93, 289.02°)
OKLab	oklab(37.94% -0.0205 -0.1307)
OKLCH	oklch(37.94% 0.132 261.1)
XYZ	xyz(6.3288, 5.2347, 23.5938)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D87 #875E14

analogous

#147687 #143D87 #251487

triadic

#143D87 #87143D #3D8714

tetradic

#143D87 #871476 #875E14 #148725

square

#143D87 #871476 #875E14 #148725

split-complementary

#143D87 #872514 #768714

monochromatic

#040D1C #0C2552 #143D87 #1C55BC #3472E1

Accessibility & contrast

On white

10.26

#143D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#143D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D87

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D87	#FFFFFF	#000000	##FFFFFF
##143D87	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02468A

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #143d87;
/* rgb */ color: rgb(20, 61, 135);
/* oklch */ color: oklch(37.9% 0.132 261.1);

Tailwind

colors: {
  custom: {
    50: '#6771ab',
    500: '#143d87',
    950: '#000000',
  },
}

SCSS

$custom: #143d87;
$custom-light: #6771ab;
$custom-dark: #000000;

JSON

{
  "hex": "#143d87",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 135
  },
  "hsl": {
    "h": 218.609,
    "s": 74.194,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37938,
    "c": 0.1323,
    "h": 261.1
  },
  "luminance": 0.05235
}

Semantic roles & 50–950 ramp

primary

#143D87

secondary

#BB8E3B

accent

#AF37F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143D87

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

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