#143981#143981

#143981 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.129 H 261.9°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#143981
RGB	rgb(20, 57, 129)
HSL	hsl(220, 73%, 29%)
HSV	hsv(220, 84%, 51%)
CMYK	cmyk(84.5%, 55.8%, 0%, 49.4%)
CIE-LAB	lab(25.74, 15.94, -44.25)
CIE-LCH	lch(25.74, 47.03, 289.81°)
OKLab	oklab(36.53% -0.0182 -0.1277)
OKLCH	oklch(36.53% 0.129 261.9)
XYZ	xyz(5.7126, 4.6593, 21.3629)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143981 #815C14

analogous

#147081 #143981 #261481

triadic

#143981 #811439 #398114

tetradic

#143981 #811470 #815C14 #148126

square

#143981 #811470 #815C14 #148126

split-complementary

#143981 #812614 #708114

monochromatic

#040C1A #0C224C #143981 #1C50B6 #306CDF

Accessibility & contrast

On white

10.87

#143981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#143981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143981

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143981	#FFFFFF	#000000	##FFFFFF
##143981	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004284

Deuteranopia (green-blind)

#003880

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143981;
/* rgb */ color: rgb(20, 57, 129);
/* oklch */ color: oklch(36.5% 0.129 261.9);

Tailwind

colors: {
  custom: {
    50: '#666ea6',
    500: '#143981',
    950: '#000000',
  },
}

SCSS

$custom: #143981;
$custom-light: #666ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#143981",
  "rgb": {
    "r": 20,
    "g": 57,
    "b": 129
  },
  "hsl": {
    "h": 219.633,
    "s": 73.154,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36534,
    "c": 0.12896,
    "h": 261.9
  },
  "luminance": 0.0466
}

Semantic roles & 50–950 ramp

primary

#143981

secondary

#B68C3B

accent

#B138F0

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143981

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

Preview Lab → · Contrast checker → · Palette generator →