#143C78#143C78

#143C78 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.112 H 258.8°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#143C78
RGB	rgb(20, 60, 120)
HSL	hsl(216, 71%, 27%)
HSV	hsv(216, 83%, 47%)
CMYK	cmyk(83.3%, 50%, 0%, 52.9%)
CIE-LAB	lab(25.97, 10.04, -38.21)
CIE-LCH	lch(25.97, 39.51, 284.72°)
OKLab	oklab(36.49% -0.0218 -0.1098)
OKLCH	oklch(36.49% 0.112 258.8)
XYZ	xyz(5.2933, 4.7359, 18.4008)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C78 #785014

analogous

#146E78 #143C78 #1E1478

triadic

#143C78 #78143C #3C7814

tetradic

#143C78 #78146E #785014 #14781E

square

#143C78 #78146E #785014 #14781E

split-complementary

#143C78 #781E14 #6E7814

monochromatic

#040D1A #0B2244 #143C78 #1D56AC #2B72DC

Accessibility & contrast

On white

10.78

#143C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#143C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C78

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C78	#FFFFFF	#000000	##FFFFFF
##143C78	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A427A

Deuteranopia (green-blind)

#003977

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143c78;
/* rgb */ color: rgb(20, 60, 120);
/* oklch */ color: oklch(36.5% 0.112 258.8);

Tailwind

colors: {
  custom: {
    50: '#63719f',
    500: '#143c78',
    950: '#000000',
  },
}

SCSS

$custom: #143c78;
$custom-light: #63719f;
$custom-dark: #000000;

JSON

{
  "hex": "#143c78",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 120
  },
  "hsl": {
    "h": 216,
    "s": 71.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36492,
    "c": 0.112,
    "h": 258.8
  },
  "luminance": 0.04737
}

Semantic roles & 50–950 ramp

primary

#143C78

secondary

#AE7F3A

accent

#A63AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143C78

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

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