#343DAC#343DAC

#343DAC is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.175 H 272.8°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#343DAC
RGB	rgb(52, 61, 172)
HSL	hsl(236, 54%, 44%)
HSV	hsv(236, 70%, 67%)
CMYK	cmyk(69.8%, 64.5%, 0%, 32.5%)
CIE-LAB	lab(31.91, 33.63, -60.43)
CIE-LCH	lch(31.91, 69.16, 299.09°)
OKLab	oklab(42.66% 0.0087 -0.1745)
OKLCH	oklch(42.66% 0.175 272.8)
XYZ	xyz(10.5288, 7.0451, 39.8267)
Luminance	0.0705 (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

#343DAC #ACA334

analogous

#3479AC #343DAC #6734AC

triadic

#343DAC #AC343D #3DAC34

tetradic

#343DAC #AC3479 #ACA334 #34AC67

square

#343DAC #AC3479 #ACA334 #34AC67

split-complementary

#343DAC #AC6734 #79AC34

monochromatic

#181C4E #262C7D #343DAC #525BCB #8188D9

Accessibility & contrast

On white

8.72

#343DAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#343DAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DAC

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DAC	#FFFFFF	#000000	##FFFFFF
##343DAC	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0046AA

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #343dac;
/* rgb */ color: rgb(52, 61, 172);
/* oklch */ color: oklch(42.7% 0.175 272.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#343dac",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 172
  },
  "hsl": {
    "h": 235.5,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42659,
    "c": 0.17468,
    "h": 272.8
  },
  "luminance": 0.07046
}

Semantic roles & 50–950 ramp

primary

#343DAC

secondary

#C2BD79

accent

#D24BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343DAC

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

Preview Lab → · Contrast checker → · Palette generator →