#143C80#143C80

#143C80 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.124 H 260.4°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#143C80
RGB	rgb(20, 60, 128)
HSL	hsl(218, 73%, 29%)
HSV	hsv(218, 84%, 50%)
CMYK	cmyk(84.4%, 53.1%, 0%, 49.8%)
CIE-LAB	lab(26.56, 13.40, -42.30)
CIE-LCH	lch(26.56, 44.37, 287.58°)
OKLab	oklab(37.13% -0.0206 -0.1219)
OKLCH	oklch(37.13% 0.124 260.4)
XYZ	xyz(5.7992, 4.9382, 21.0654)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C80 #805814

analogous

#147280 #143C80 #221480

triadic

#143C80 #80143C #3C8014

tetradic

#143C80 #801472 #805814 #148022

square

#143C80 #801472 #805814 #148022

split-complementary

#143C80 #802214 #728014

monochromatic

#040C1A #0C234B #143C80 #1C55B5 #3071DF

Accessibility & contrast

On white

10.56

#143C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#143C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C80

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C80	#FFFFFF	#000000	##FFFFFF
##143C80	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4482

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143c80;
/* rgb */ color: rgb(20, 60, 128);
/* oklch */ color: oklch(37.1% 0.124 260.4);

Tailwind

colors: {
  custom: {
    50: '#6671a5',
    500: '#143c80',
    950: '#000000',
  },
}

SCSS

$custom: #143c80;
$custom-light: #6671a5;
$custom-dark: #000000;

JSON

{
  "hex": "#143c80",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 128
  },
  "hsl": {
    "h": 217.778,
    "s": 72.973,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37131,
    "c": 0.1236,
    "h": 260.4
  },
  "luminance": 0.04939
}

Semantic roles & 50–950 ramp

primary

#143C80

secondary

#B5883B

accent

#AC38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143C80

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

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