#143C87#143C87

#143C87 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.134 H 261.5°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#143C87
RGB	rgb(20, 60, 135)
HSL	hsl(219, 74%, 30%)
HSV	hsv(219, 85%, 53%)
CMYK	cmyk(85.2%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(27.10, 16.32, -45.79)
CIE-LCH	lch(27.10, 48.61, 289.62°)
OKLab	oklab(37.71% -0.0197 -0.1321)
OKLCH	oklch(37.71% 0.134 261.5)
XYZ	xyz(6.2759, 5.1289, 23.5762)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C87 #875F14

analogous

#147687 #143C87 #251487

triadic

#143C87 #87143C #3C8714

tetradic

#143C87 #871476 #875F14 #148725

square

#143C87 #871476 #875F14 #148725

split-complementary

#143C87 #872514 #768714

monochromatic

#040D1C #0C2452 #143C87 #1C54BC #3470E1

Accessibility & contrast

On white

10.37

#143C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#143C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C87

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C87	#FFFFFF	#000000	##FFFFFF
##143C87	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458A

Deuteranopia (green-blind)

#003B86

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #143c87;
/* rgb */ color: rgb(20, 60, 135);
/* oklch */ color: oklch(37.7% 0.134 261.5);

Tailwind

colors: {
  custom: {
    50: '#6871ab',
    500: '#143c87',
    950: '#000000',
  },
}

SCSS

$custom: #143c87;
$custom-light: #6871ab;
$custom-dark: #000000;

JSON

{
  "hex": "#143c87",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 219.13,
    "s": 74.194,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37714,
    "c": 0.13361,
    "h": 261.5
  },
  "luminance": 0.0513
}

Semantic roles & 50–950 ramp

primary

#143C87

secondary

#BB8F3B

accent

#B037F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143C87

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

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