#143E83#143E83

#143E83 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.8% C 0.125 H 260.0°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#143E83
RGB	rgb(20, 62, 131)
HSL	hsl(217, 74%, 30%)
HSV	hsv(217, 85%, 51%)
CMYK	cmyk(84.7%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(27.39, 13.25, -42.83)
CIE-LCH	lch(27.39, 44.84, 287.19°)
OKLab	oklab(37.84% -0.0217 -0.1234)
OKLCH	oklch(37.84% 0.125 260)
XYZ	xyz(6.1064, 5.2319, 22.1564)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E83 #835914

analogous

#147683 #143E83 #211483

triadic

#143E83 #83143E #3E8314

tetradic

#143E83 #831476 #835914 #148321

square

#143E83 #831476 #835914 #148321

split-complementary

#143E83 #832114 #768314

monochromatic

#040D1B #0C254E #143E83 #1C57B8 #3274E0

Accessibility & contrast

On white

10.26

#143E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#143E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E83

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E83	#FFFFFF	#000000	##FFFFFF
##143E83	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104685

Deuteranopia (green-blind)

#003C82

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #143e83;
/* rgb */ color: rgb(20, 62, 131);
/* oklch */ color: oklch(37.8% 0.125 260.0);

Tailwind

colors: {
  custom: {
    50: '#6672a8',
    500: '#143e83',
    950: '#000000',
  },
}

SCSS

$custom: #143e83;
$custom-light: #6672a8;
$custom-dark: #000000;

JSON

{
  "hex": "#143e83",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 217.297,
    "s": 73.51,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37835,
    "c": 0.1253,
    "h": 260
  },
  "luminance": 0.05233
}

Semantic roles & 50–950 ramp

primary

#143E83

secondary

#B8893B

accent

#AA38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143E83

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

Preview Lab → · Contrast checker → · Palette generator →