#143D82#143D82

#143D82 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.5% C 0.125 H 260.3°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#143D82
RGB	rgb(20, 61, 130)
HSL	hsl(218, 73%, 29%)
HSV	hsv(218, 85%, 51%)
CMYK	cmyk(84.6%, 53.1%, 0%, 49%)
CIE-LAB	lab(27.01, 13.53, -42.82)
CIE-LCH	lch(27.01, 44.91, 287.54°)
OKLab	oklab(37.52% -0.0211 -0.1234)
OKLCH	oklch(37.52% 0.125 260.3)
XYZ	xyz(5.9850, 5.0972, 21.7832)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D82 #825914

analogous

#147482 #143D82 #221482

triadic

#143D82 #82143D #3D8214

tetradic

#143D82 #821474 #825914 #148222

square

#143D82 #821474 #825914 #148222

split-complementary

#143D82 #822214 #748214

monochromatic

#040C1B #0C244D #143D82 #1C56B7 #3172DF

Accessibility & contrast

On white

10.40

#143D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#143D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D82

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D82	#FFFFFF	#000000	##FFFFFF
##143D82	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4584

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #143d82;
/* rgb */ color: rgb(20, 61, 130);
/* oklch */ color: oklch(37.5% 0.125 260.3);

Tailwind

colors: {
  custom: {
    50: '#6671a7',
    500: '#143d82',
    950: '#000000',
  },
}

SCSS

$custom: #143d82;
$custom-light: #6671a7;
$custom-dark: #000000;

JSON

{
  "hex": "#143d82",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 130
  },
  "hsl": {
    "h": 217.636,
    "s": 73.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37524,
    "c": 0.12516,
    "h": 260.3
  },
  "luminance": 0.05098
}

Semantic roles & 50–950 ramp

primary

#143D82

secondary

#B7893B

accent

#AB38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143D82

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

Preview Lab → · Contrast checker → · Palette generator →