#143581#143581

#143581 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.134 H 263.4°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#143581
RGB	rgb(20, 53, 129)
HSL	hsl(222, 73%, 29%)
HSV	hsv(222, 84%, 51%)
CMYK	cmyk(84.5%, 58.9%, 0%, 49.4%)
CIE-LAB	lab(24.57, 18.77, -46.15)
CIE-LCH	lch(24.57, 49.82, 292.14°)
OKLab	oklab(35.65% -0.0154 -0.1333)
OKLCH	oklch(35.65% 0.134 263.4)
XYZ	xyz(5.5226, 4.2792, 21.2995)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143581 #816014

analogous

#146C81 #143581 #2A1481

triadic

#143581 #811435 #358114

tetradic

#143581 #81146C #816014 #14812A

square

#143581 #81146C #816014 #14812A

split-complementary

#143581 #812A14 #6C8114

monochromatic

#040B1A #0C1F4C #143581 #1C4BB6 #3065DF

Accessibility & contrast

On white

11.31

#143581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#143581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143581

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143581	#FFFFFF	#000000	##FFFFFF
##143581	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004084

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143581;
/* rgb */ color: rgb(20, 53, 129);
/* oklch */ color: oklch(35.7% 0.134 263.4);

Tailwind

colors: {
  custom: {
    50: '#666ba6',
    500: '#143581',
    950: '#000000',
  },
}

SCSS

$custom: #143581;
$custom-light: #666ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#143581",
  "rgb": {
    "r": 20,
    "g": 53,
    "b": 129
  },
  "hsl": {
    "h": 221.835,
    "s": 73.154,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35652,
    "c": 0.13421,
    "h": 263.4
  },
  "luminance": 0.0428
}

Semantic roles & 50–950 ramp

primary

#143581

secondary

#B6913B

accent

#B838F0

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #143581

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

Preview Lab → · Contrast checker → · Palette generator →