#343DAD#343DAD

#343DAD is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.176 H 272.8°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#343DAD
RGB	rgb(52, 61, 173)
HSL	hsl(236, 54%, 44%)
HSV	hsv(236, 70%, 68%)
CMYK	cmyk(69.9%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(32.00, 33.98, -60.88)
CIE-LCH	lch(32.00, 69.73, 299.17°)
OKLab	oklab(42.75% 0.0086 -0.1758)
OKLCH	oklch(42.75% 0.176 272.8)
XYZ	xyz(10.6252, 7.0837, 40.3344)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343DAD #ADA434

analogous

#347AAD #343DAD #6834AD

triadic

#343DAD #AD343D #3DAD34

tetradic

#343DAD #AD347A #ADA434 #34AD68

square

#343DAD #AD347A #ADA434 #34AD68

split-complementary

#343DAD #AD6834 #7AAD34

monochromatic

#181C4F #262C7E #343DAD #535CCB #8288D9

Accessibility & contrast

On white

8.69

#343DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#343DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DAD

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DAD	#FFFFFF	#000000	##FFFFFF
##343DAD	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0046AB

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #343dad;
/* rgb */ color: rgb(52, 61, 173);
/* oklch */ color: oklch(42.8% 0.176 272.8);

Tailwind

colors: {
  custom: {
    50: '#7c72c6',
    500: '#343dad',
    950: '#000000',
  },
}

SCSS

$custom: #343dad;
$custom-light: #7c72c6;
$custom-dark: #000000;

JSON

{
  "hex": "#343dad",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 235.537,
    "s": 53.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.4275,
    "c": 0.17601,
    "h": 272.8
  },
  "luminance": 0.07085
}

Semantic roles & 50–950 ramp

primary

#343DAD

secondary

#C3BD7A

accent

#D24BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343DAD

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

Preview Lab → · Contrast checker → · Palette generator →