#143578#143578

#143578 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 34.9% C 0.121 H 262.3°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#143578
RGB	rgb(20, 53, 120)
HSL	hsl(220, 71%, 27%)
HSV	hsv(220, 83%, 47%)
CMYK	cmyk(83.3%, 55.8%, 0%, 52.9%)
CIE-LAB	lab(23.84, 15.01, -41.66)
CIE-LCH	lch(23.84, 44.28, 289.82°)
OKLab	oklab(34.86% -0.0162 -0.1201)
OKLCH	oklch(34.86% 0.121 262.3)
XYZ	xyz(4.9505, 4.0504, 18.2865)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143578 #785714

analogous

#146778 #143578 #251478

triadic

#143578 #781435 #357814

tetradic

#143578 #781467 #785714 #147825

square

#143578 #781467 #785714 #147825

split-complementary

#143578 #782514 #677814

monochromatic

#040C1A #0B1E44 #143578 #1D4CAC #2B65DC

Accessibility & contrast

On white

11.60

#143578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143578

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143578	#FFFFFF	#000000	##FFFFFF
##143578	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7A

Deuteranopia (green-blind)

#003477

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143578;
/* rgb */ color: rgb(20, 53, 120);
/* oklch */ color: oklch(34.9% 0.121 262.3);

Tailwind

colors: {
  custom: {
    50: '#646ba0',
    500: '#143578',
    950: '#000000',
  },
}

SCSS

$custom: #143578;
$custom-light: #646ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#143578",
  "rgb": {
    "r": 20,
    "g": 53,
    "b": 120
  },
  "hsl": {
    "h": 220.2,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34863,
    "c": 0.12123,
    "h": 262.3
  },
  "luminance": 0.04051
}

Semantic roles & 50–950 ramp

primary

#143578

secondary

#AE883A

accent

#B33AEE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #143578

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

Preview Lab → · Contrast checker → · Palette generator →