#143580#143580

#143580 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.6% C 0.133 H 263.3°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#143580
RGB	rgb(20, 53, 128)
HSL	hsl(222, 73%, 29%)
HSV	hsv(222, 84%, 50%)
CMYK	cmyk(84.4%, 58.6%, 0%, 49.8%)
CIE-LAB	lab(24.49, 18.36, -45.65)
CIE-LCH	lch(24.49, 49.21, 291.90°)
OKLab	oklab(35.56% -0.0155 -0.1319)
OKLCH	oklch(35.56% 0.133 263.3)
XYZ	xyz(5.4565, 4.2528, 20.9512)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143580 #805F14

analogous

#146B80 #143580 #291480

triadic

#143580 #801435 #358014

tetradic

#143580 #80146B #805F14 #148029

square

#143580 #80146B #805F14 #148029

split-complementary

#143580 #802914 #6B8014

monochromatic

#040B1A #0C1F4B #143580 #1C4BB5 #3065DF

Accessibility & contrast

On white

11.35

#143580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#143580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143580

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143580	#FFFFFF	#000000	##FFFFFF
##143580	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F83

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143580;
/* rgb */ color: rgb(20, 53, 128);
/* oklch */ color: oklch(35.6% 0.133 263.3);

Tailwind

colors: {
  custom: {
    50: '#666ba5',
    500: '#143580',
    950: '#000000',
  },
}

SCSS

$custom: #143580;
$custom-light: #666ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#143580",
  "rgb": {
    "r": 20,
    "g": 53,
    "b": 128
  },
  "hsl": {
    "h": 221.667,
    "s": 72.973,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35562,
    "c": 0.13279,
    "h": 263.3
  },
  "luminance": 0.04253
}

Semantic roles & 50–950 ramp

primary

#143580

secondary

#B5903B

accent

#B838F0

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #143580

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

Preview Lab → · Contrast checker → · Palette generator →