#343E8A#343E8A

#343E8A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.126 H 273.6°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#343E8A
RGB	rgb(52, 62, 138)
HSL	hsl(233, 45%, 37%)
HSV	hsv(233, 62%, 54%)
CMYK	cmyk(62.3%, 55.1%, 0%, 45.9%)
CIE-LAB	lab(29.44, 20.73, -43.79)
CIE-LCH	lch(29.44, 48.45, 295.33°)
OKLab	oklab(39.97% 0.008 -0.1256)
OKLCH	oklch(39.97% 0.126 273.6)
XYZ	xyz(7.7247, 6.0097, 24.7927)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E8A #8A8034

analogous

#34698A #343E8A #55348A

triadic

#343E8A #8A343E #3E8A34

tetradic

#343E8A #8A3469 #8A8034 #348A55

square

#343E8A #8A3469 #8A8034 #348A55

split-complementary

#343E8A #8A5534 #698A34

monochromatic

#131631 #232A5E #343E8A #4552B6 #6F7AC9

Accessibility & contrast

On white

9.54

#343E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#343E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E8A

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E8A	#FFFFFF	#000000	##FFFFFF
##343E8A	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D498D

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343e8a;
/* rgb */ color: rgb(52, 62, 138);
/* oklch */ color: oklch(40.0% 0.126 273.6);

Tailwind

colors: {
  custom: {
    50: '#7473ad',
    500: '#343e8a',
    950: '#000000',
  },
}

SCSS

$custom: #343e8a;
$custom-light: #7473ad;
$custom-dark: #000000;

JSON

{
  "hex": "#343e8a",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 138
  },
  "hsl": {
    "h": 233.023,
    "s": 45.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39971,
    "c": 0.12582,
    "h": 273.6
  },
  "luminance": 0.0601
}

Semantic roles & 50–950 ramp

primary

#343E8A

secondary

#B1A969

accent

#C653D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #343E8A

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

Preview Lab → · Contrast checker → · Palette generator →