#143E8A#143E8A

#143E8A is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.135 H 261.1°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#143E8A
RGB	rgb(20, 62, 138)
HSL	hsl(219, 75%, 31%)
HSV	hsv(219, 86%, 54%)
CMYK	cmyk(85.5%, 55.1%, 0%, 45.9%)
CIE-LAB	lab(27.92, 16.16, -46.32)
CIE-LCH	lch(27.92, 49.06, 289.24°)
OKLab	oklab(38.41% -0.0208 -0.1336)
OKLCH	oklch(38.41% 0.135 261.1)
XYZ	xyz(6.5969, 5.4281, 24.7399)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E8A #8A6014

analogous

#14798A #143E8A #25148A

triadic

#143E8A #8A143E #3E8A14

tetradic

#143E8A #8A1479 #8A6014 #148A25

square

#143E8A #8A1479 #8A6014 #148A25

split-complementary

#143E8A #8A2514 #798A14

monochromatic

#050E1F #0C2655 #143E8A #1C56BF #3673E2

Accessibility & contrast

On white

10.07

#143E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#143E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E8A

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E8A	#FFFFFF	#000000	##FFFFFF
##143E8A	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #143e8a;
/* rgb */ color: rgb(20, 62, 138);
/* oklch */ color: oklch(38.4% 0.135 261.1);

Tailwind

colors: {
  custom: {
    50: '#6872ad',
    500: '#143e8a',
    950: '#000000',
  },
}

SCSS

$custom: #143e8a;
$custom-light: #6872ad;
$custom-dark: #000000;

JSON

{
  "hex": "#143e8a",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 138
  },
  "hsl": {
    "h": 218.644,
    "s": 74.684,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38413,
    "c": 0.13526,
    "h": 261.1
  },
  "luminance": 0.05429
}

Semantic roles & 50–950 ramp

primary

#143E8A

secondary

#BE903C

accent

#AF36F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143E8A

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

Preview Lab → · Contrast checker → · Palette generator →