#343CBA#343CBA

#343CBA is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.8% C 0.194 H 272.4°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#343CBA
RGB	rgb(52, 60, 186)
HSL	hsl(236, 56%, 47%)
HSV	hsv(236, 72%, 73%)
CMYK	cmyk(72%, 67.7%, 0%, 27.1%)
CIE-LAB	lab(32.93, 39.17, -67.07)
CIE-LCH	lch(32.93, 77.67, 300.28°)
OKLab	oklab(43.79% 0.0081 -0.1939)
OKLCH	oklch(43.79% 0.194 272.4)
XYZ	xyz(11.8920, 7.5058, 47.2669)
Luminance	0.0751 (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

#343CBA #BAB234

analogous

#347FBA #343CBA #6F34BA

triadic

#343CBA #BA343C #3CBA34

tetradic

#343CBA #BA347F #BAB234 #34BA6F

square

#343CBA #BA347F #BAB234 #34BA6F

split-complementary

#343CBA #BA6F34 #7FBA34

monochromatic

#191D5A #272D8A #343CBA #5A61D1 #8A8FDE

Accessibility & contrast

On white

8.40

#343CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#343CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CBA

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CBA	#FFFFFF	#000000	##FFFFFF
##343CBA	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#0047B8

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343cba;
/* rgb */ color: rgb(52, 60, 186);
/* oklch */ color: oklch(43.8% 0.194 272.4);

Tailwind

colors: {
  custom: {
    50: '#7f72d0',
    500: '#343cba',
    950: '#000000',
  },
}

SCSS

$custom: #343cba;
$custom-light: #7f72d0;
$custom-dark: #000000;

JSON

{
  "hex": "#343cba",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 186
  },
  "hsl": {
    "h": 236.418,
    "s": 56.303,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43789,
    "c": 0.19409,
    "h": 272.4
  },
  "luminance": 0.07507
}

Semantic roles & 50–950 ramp

primary

#343CBA

secondary

#C8C481

accent

#D748E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #343CBA

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

Preview Lab → · Contrast checker → · Palette generator →