#143D83#143D83

#143D83 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.6% C 0.127 H 260.5°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#143D83
RGB	rgb(20, 61, 131)
HSL	hsl(218, 74%, 30%)
HSV	hsv(218, 85%, 51%)
CMYK	cmyk(84.7%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(27.09, 13.95, -43.32)
CIE-LCH	lch(27.09, 45.51, 287.85°)
OKLab	oklab(37.61% -0.0209 -0.1248)
OKLCH	oklch(37.61% 0.127 260.5)
XYZ	xyz(6.0525, 5.1242, 22.1384)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D83 #835A14

analogous

#147583 #143D83 #231483

triadic

#143D83 #83143D #3D8314

tetradic

#143D83 #831475 #835A14 #148323

square

#143D83 #831475 #835A14 #148323

split-complementary

#143D83 #832314 #758314

monochromatic

#040C1B #0C244E #143D83 #1C56B8 #3272E0

Accessibility & contrast

On white

10.37

#143D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#143D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D83

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D83	#FFFFFF	#000000	##FFFFFF
##143D83	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4586

Deuteranopia (green-blind)

#003B82

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #143d83;
/* rgb */ color: rgb(20, 61, 131);
/* oklch */ color: oklch(37.6% 0.127 260.5);

Tailwind

colors: {
  custom: {
    50: '#6671a8',
    500: '#143d83',
    950: '#000000',
  },
}

SCSS

$custom: #143d83;
$custom-light: #6671a8;
$custom-dark: #000000;

JSON

{
  "hex": "#143d83",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 217.838,
    "s": 73.51,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37606,
    "c": 0.1266,
    "h": 260.5
  },
  "luminance": 0.05125
}

Semantic roles & 50–950 ramp

primary

#143D83

secondary

#B88A3B

accent

#AC38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143D83

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

Preview Lab → · Contrast checker → · Palette generator →