#143A77#143A77

#143A77 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.113 H 259.7°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#143A77
RGB	rgb(20, 58, 119)
HSL	hsl(217, 71%, 27%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(83.2%, 51.3%, 0%, 53.3%)
CIE-LAB	lab(25.28, 11.03, -38.69)
CIE-LCH	lch(25.28, 40.24, 285.91°)
OKLab	oklab(35.94% -0.0203 -0.1113)
OKLCH	oklch(35.94% 0.113 259.7)
XYZ	xyz(5.1301, 4.5061, 18.0486)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A77 #775114

analogous

#146B77 #143A77 #201477

triadic

#143A77 #77143A #3A7714

tetradic

#143A77 #77146B #775114 #147720

square

#143A77 #77146B #775114 #147720

split-complementary

#143A77 #772014 #6B7714

monochromatic

#040D1A #0B2043 #143A77 #1D54AB #2A6EDB

Accessibility & contrast

On white

11.04

#143A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#143A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A77

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A77	#FFFFFF	#000000	##FFFFFF
##143A77	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164179

Deuteranopia (green-blind)

#003876

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143a77;
/* rgb */ color: rgb(20, 58, 119);
/* oklch */ color: oklch(35.9% 0.113 259.7);

Tailwind

colors: {
  custom: {
    50: '#636f9f',
    500: '#143a77',
    950: '#000000',
  },
}

SCSS

$custom: #143a77;
$custom-light: #636f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#143a77",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 119
  },
  "hsl": {
    "h": 216.97,
    "s": 71.223,
    "l": 27.255
  },
  "oklch": {
    "l": 0.35939,
    "c": 0.11315,
    "h": 259.7
  },
  "luminance": 0.04507
}

Semantic roles & 50–950 ramp

primary

#143A77

secondary

#AD813A

accent

#A93AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A77

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

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