#343EA1#343EA1

#343EA1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.159 H 273.0°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#343EA1
RGB	rgb(52, 62, 161)
HSL	hsl(234, 51%, 42%)
HSV	hsv(234, 68%, 63%)
CMYK	cmyk(67.7%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(31.23, 29.05, -54.94)
CIE-LCH	lch(31.23, 62.14, 297.87°)
OKLab	oklab(41.87% 0.0084 -0.1583)
OKLCH	oklch(41.87% 0.159 273)
XYZ	xyz(9.5697, 6.7477, 34.5094)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343EA1 #A19734

analogous

#3475A1 #343EA1 #6034A1

triadic

#343EA1 #A1343E #3EA134

tetradic

#343EA1 #A13475 #A19734 #34A160

square

#343EA1 #A13475 #A19734 #34A160

split-complementary

#343EA1 #A16034 #75A134

monochromatic

#161A44 #252C73 #343EA1 #4D58C5 #7B83D4

Accessibility & contrast

On white

8.94

#343EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#343EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EA1

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EA1	#FFFFFF	#000000	##FFFFFF
##343EA1	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00459F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343ea1;
/* rgb */ color: rgb(52, 62, 161);
/* oklch */ color: oklch(41.9% 0.159 273.0);

Tailwind

colors: {
  custom: {
    50: '#7973be',
    500: '#343ea1',
    950: '#000000',
  },
}

SCSS

$custom: #343ea1;
$custom-light: #7973be;
$custom-dark: #000000;

JSON

{
  "hex": "#343ea1",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 234.495,
    "s": 51.174,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41867,
    "c": 0.15857,
    "h": 273
  },
  "luminance": 0.06749
}

Semantic roles & 50–950 ramp

primary

#343EA1

secondary

#BDB674

accent

#CE4DDB

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343EA1

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

Preview Lab → · Contrast checker → · Palette generator →