#343CAC#343CAC

#343CAC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.176 H 273.1°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#343CAC
RGB	rgb(52, 60, 172)
HSL	hsl(236, 54%, 44%)
HSV	hsv(236, 70%, 67%)
CMYK	cmyk(69.8%, 65.1%, 0%, 32.5%)
CIE-LAB	lab(31.67, 34.26, -60.82)
CIE-LCH	lch(31.67, 69.81, 299.39°)
OKLab	oklab(42.48% 0.0094 -0.1756)
OKLCH	oklch(42.48% 0.176 273.1)
XYZ	xyz(10.4759, 6.9393, 39.8091)
Luminance	0.0694 (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

#343CAC #ACA434

analogous

#3478AC #343CAC #6834AC

triadic

#343CAC #AC343C #3CAC34

tetradic

#343CAC #AC3478 #ACA434 #34AC68

square

#343CAC #AC3478 #ACA434 #34AC68

split-complementary

#343CAC #AC6834 #78AC34

monochromatic

#181B4E #262C7D #343CAC #525ACB #8187D9

Accessibility & contrast

On white

8.79

#343CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#343CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CAC

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CAC	#FFFFFF	#000000	##FFFFFF
##343CAC	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0045AA

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343cac;
/* rgb */ color: rgb(52, 60, 172);
/* oklch */ color: oklch(42.5% 0.176 273.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#343cac",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 172
  },
  "hsl": {
    "h": 236,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42483,
    "c": 0.17588,
    "h": 273.1
  },
  "luminance": 0.0694
}

Semantic roles & 50–950 ramp

primary

#343CAC

secondary

#C2BD79

accent

#D34BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343CAC

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

Preview Lab → · Contrast checker → · Palette generator →