#143A78#143A78

#143A78 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.115 H 259.9°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#143A78
RGB	rgb(20, 58, 120)
HSL	hsl(217, 71%, 27%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(83.3%, 51.7%, 0%, 52.9%)
CIE-LAB	lab(25.35, 11.45, -39.21)
CIE-LCH	lch(25.35, 40.85, 286.28°)
OKLab	oklab(36.02% -0.0202 -0.1128)
OKLCH	oklch(36.02% 0.115 259.9)
XYZ	xyz(5.1905, 4.5303, 18.3665)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A78 #785214

analogous

#146C78 #143A78 #201478

triadic

#143A78 #78143A #3A7814

tetradic

#143A78 #78146C #785214 #147820

square

#143A78 #78146C #785214 #147820

split-complementary

#143A78 #782014 #6C7814

monochromatic

#040D1A #0B2144 #143A78 #1D53AC #2B6EDC

Accessibility & contrast

On white

11.02

#143A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#143A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A78

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A78	#FFFFFF	#000000	##FFFFFF
##143A78	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14417A

Deuteranopia (green-blind)

#003877

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143a78;
/* rgb */ color: rgb(20, 58, 120);
/* oklch */ color: oklch(36.0% 0.115 259.9);

Tailwind

colors: {
  custom: {
    50: '#646f9f',
    500: '#143a78',
    950: '#000000',
  },
}

SCSS

$custom: #143a78;
$custom-light: #646f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#143a78",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 120
  },
  "hsl": {
    "h": 217.2,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36019,
    "c": 0.11461,
    "h": 259.9
  },
  "luminance": 0.04531
}

Semantic roles & 50–950 ramp

primary

#143A78

secondary

#AE823A

accent

#AA3AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A78

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

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