#343DB7#343DB7

#343DB7 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.7% C 0.189 H 272.4°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#343DB7
RGB	rgb(52, 61, 183)
HSL	hsl(236, 56%, 46%)
HSV	hsv(236, 72%, 72%)
CMYK	cmyk(71.6%, 66.7%, 0%, 28.2%)
CIE-LAB	lab(32.89, 37.50, -65.37)
CIE-LCH	lch(32.89, 75.36, 299.84°)
OKLab	oklab(43.67% 0.0078 -0.1889)
OKLCH	oklch(43.67% 0.189 272.4)
XYZ	xyz(11.6293, 7.4853, 45.6225)
Luminance	0.0749 (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

#343DB7 #B7AE34

analogous

#347EB7 #343DB7 #6C34B7

triadic

#343DB7 #B7343D #3DB734

tetradic

#343DB7 #B7347E #B7AE34 #34B76C

square

#343DB7 #B7347E #B7AE34 #34B76C

split-complementary

#343DB7 #B76C34 #7EB734

monochromatic

#191D58 #262D87 #343DB7 #5961D0 #888EDD

Accessibility & contrast

On white

8.41

#343DB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#343DB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DB7

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DB7	#FFFFFF	#000000	##FFFFFF
##343DB7	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BB

Deuteranopia (green-blind)

#0047B5

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343db7;
/* rgb */ color: rgb(52, 61, 183);
/* oklch */ color: oklch(43.7% 0.189 272.4);

Tailwind

colors: {
  custom: {
    50: '#7e73ce',
    500: '#343db7',
    950: '#000000',
  },
}

SCSS

$custom: #343db7;
$custom-light: #7e73ce;
$custom-dark: #000000;

JSON

{
  "hex": "#343db7",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 183
  },
  "hsl": {
    "h": 235.878,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43673,
    "c": 0.1891,
    "h": 272.4
  },
  "luminance": 0.07486
}

Semantic roles & 50–950 ramp

primary

#343DB7

secondary

#C7C280

accent

#D549DF

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #343DB7

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

Preview Lab → · Contrast checker → · Palette generator →