#343E9D#343E9D

#343E9D is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.153 H 273.2°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#343E9D
RGB	rgb(52, 62, 157)
HSL	hsl(234, 50%, 41%)
HSV	hsv(234, 67%, 62%)
CMYK	cmyk(66.9%, 60.5%, 0%, 38.4%)
CIE-LAB	lab(30.90, 27.61, -53.05)
CIE-LCH	lch(30.90, 59.80, 297.49°)
OKLab	oklab(41.52% 0.0084 -0.1528)
OKLCH	oklch(41.52% 0.153 273.2)
XYZ	xyz(9.2226, 6.6088, 32.6814)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E9D #9D9334

analogous

#34729D #343E9D #5E349D

triadic

#343E9D #9D343E #3E9D34

tetradic

#343E9D #9D3472 #9D9334 #349D5E

square

#343E9D #9D3472 #9D9334 #349D5E

split-complementary

#343E9D #9D5E34 #729D34

monochromatic

#161A41 #252C6F #343E9D #4B56C3 #7981D3

Accessibility & contrast

On white

9.04

#343E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#343E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E9D

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E9D	#FFFFFF	#000000	##FFFFFF
##343E9D	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA0

Deuteranopia (green-blind)

#00449B

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343e9d;
/* rgb */ color: rgb(52, 62, 157);
/* oklch */ color: oklch(41.5% 0.153 273.2);

Tailwind

colors: {
  custom: {
    50: '#7873bb',
    500: '#343e9d',
    950: '#000000',
  },
}

SCSS

$custom: #343e9d;
$custom-light: #7873bb;
$custom-dark: #000000;

JSON

{
  "hex": "#343e9d",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 157
  },
  "hsl": {
    "h": 234.286,
    "s": 50.239,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41523,
    "c": 0.15303,
    "h": 273.2
  },
  "luminance": 0.0661
}

Semantic roles & 50–950 ramp

primary

#343E9D

secondary

#BBB472

accent

#CC4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343E9D

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

Preview Lab → · Contrast checker → · Palette generator →