#343EB2#343EB2

#343EB2 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.181 H 272.4°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#343EB2
RGB	rgb(52, 62, 178)
HSL	hsl(235, 55%, 45%)
HSV	hsv(235, 71%, 70%)
CMYK	cmyk(70.8%, 65.2%, 0%, 30.2%)
CIE-LAB	lab(32.68, 35.12, -62.75)
CIE-LCH	lch(32.68, 71.91, 299.23°)
OKLab	oklab(43.38% 0.0075 -0.1813)
OKLCH	oklch(43.38% 0.181 272.4)
XYZ	xyz(11.1720, 7.3886, 42.9482)
Luminance	0.0739 (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

#343EB2 #B2A834

analogous

#347DB2 #343EB2 #6934B2

triadic

#343EB2 #B2343E #3EB234

tetradic

#343EB2 #B2347D #B2A834 #34B269

square

#343EB2 #B2347D #B2A834 #34B269

split-complementary

#343EB2 #B26934 #7DB234

monochromatic

#181D53 #262E83 #343EB2 #565FCE #858CDB

Accessibility & contrast

On white

8.47

#343EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#343EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EB2

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EB2	#FFFFFF	#000000	##FFFFFF
##343EB2	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343eb2;
/* rgb */ color: rgb(52, 62, 178);
/* oklch */ color: oklch(43.4% 0.181 272.4);

Tailwind

colors: {
  custom: {
    50: '#7d73ca',
    500: '#343eb2',
    950: '#000000',
  },
}

SCSS

$custom: #343eb2;
$custom-light: #7d73ca;
$custom-dark: #000000;

JSON

{
  "hex": "#343eb2",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 178
  },
  "hsl": {
    "h": 235.238,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43382,
    "c": 0.18143,
    "h": 272.4
  },
  "luminance": 0.0739
}

Semantic roles & 50–950 ramp

primary

#343EB2

secondary

#C5BF7D

accent

#D24ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343EB2

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

Preview Lab → · Contrast checker → · Palette generator →