#143B84#143B84

#143B84 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.131 H 261.5°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#143B84
RGB	rgb(20, 59, 132)
HSL	hsl(219, 74%, 30%)
HSV	hsv(219, 85%, 52%)
CMYK	cmyk(84.8%, 55.3%, 0%, 48.2%)
CIE-LAB	lab(26.57, 15.78, -44.78)
CIE-LCH	lch(26.57, 47.48, 289.41°)
OKLab	oklab(37.24% -0.0194 -0.1292)
OKLCH	oklch(37.24% 0.131 261.5)
XYZ	xyz(6.0158, 4.9419, 22.4621)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B84 #845D14

analogous

#147384 #143B84 #251484

triadic

#143B84 #84143B #3B8414

tetradic

#143B84 #841473 #845D14 #148425

square

#143B84 #841473 #845D14 #148425

split-complementary

#143B84 #842514 #738414

monochromatic

#040C1B #0C234F #143B84 #1C53B9 #326FE0

Accessibility & contrast

On white

10.56

#143B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#143B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B84

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B84	#FFFFFF	#000000	##FFFFFF
##143B84	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)

#004487

Deuteranopia (green-blind)

#003A83

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143b84;
/* rgb */ color: rgb(20, 59, 132);
/* oklch */ color: oklch(37.2% 0.131 261.5);

Tailwind

colors: {
  custom: {
    50: '#6770a8',
    500: '#143b84',
    950: '#000000',
  },
}

SCSS

$custom: #143b84;
$custom-light: #6770a8;
$custom-dark: #000000;

JSON

{
  "hex": "#143b84",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 132
  },
  "hsl": {
    "h": 219.107,
    "s": 73.684,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37237,
    "c": 0.13063,
    "h": 261.5
  },
  "luminance": 0.04943
}

Semantic roles & 50–950 ramp

primary

#143B84

secondary

#B98D3B

accent

#B037F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143B84

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

Preview Lab → · Contrast checker → · Palette generator →