#143B78#143B78

#143B78 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.113 H 259.3°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#143B78
RGB	rgb(20, 59, 120)
HSL	hsl(217, 71%, 27%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(83.3%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(25.66, 10.75, -38.71)
CIE-LCH	lch(25.66, 40.18, 285.51°)
OKLab	oklab(36.25% -0.021 -0.1113)
OKLCH	oklch(36.25% 0.113 259.3)
XYZ	xyz(5.2414, 4.6321, 18.3835)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B78 #785114

analogous

#146D78 #143B78 #1F1478

triadic

#143B78 #78143B #3B7814

tetradic

#143B78 #78146D #785114 #14781F

square

#143B78 #78146D #785114 #14781F

split-complementary

#143B78 #781F14 #6D7814

monochromatic

#040D1A #0B2144 #143B78 #1D55AC #2B70DC

Accessibility & contrast

On white

10.90

#143B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#143B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B78

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B78	#FFFFFF	#000000	##FFFFFF
##143B78	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17427A

Deuteranopia (green-blind)

#003977

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143b78;
/* rgb */ color: rgb(20, 59, 120);
/* oklch */ color: oklch(36.3% 0.113 259.3);

Tailwind

colors: {
  custom: {
    50: '#64709f',
    500: '#143b78',
    950: '#000000',
  },
}

SCSS

$custom: #143b78;
$custom-light: #64709f;
$custom-dark: #000000;

JSON

{
  "hex": "#143b78",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 216.6,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36254,
    "c": 0.1133,
    "h": 259.3
  },
  "luminance": 0.04633
}

Semantic roles & 50–950 ramp

primary

#143B78

secondary

#AE813A

accent

#A83AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143B78

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

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