#343EB7#343EB7

#343EB7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.188 H 272.2°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#343EB7
RGB	rgb(52, 62, 183)
HSL	hsl(235, 56%, 46%)
HSV	hsv(235, 72%, 72%)
CMYK	cmyk(71.6%, 66.1%, 0%, 28.2%)
CIE-LAB	lab(33.12, 36.88, -64.99)
CIE-LCH	lch(33.12, 74.72, 299.57°)
OKLab	oklab(43.84% 0.0072 -0.1878)
OKLCH	oklch(43.84% 0.188 272.2)
XYZ	xyz(11.6832, 7.5930, 45.6405)
Luminance	0.0759 (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

#343EB7 #B7AD34

analogous

#347FB7 #343EB7 #6B34B7

triadic

#343EB7 #B7343E #3EB734

tetradic

#343EB7 #B7347F #B7AD34 #34B76B

square

#343EB7 #B7347F #B7AD34 #34B76B

split-complementary

#343EB7 #B76B34 #7FB734

monochromatic

#191E58 #262E87 #343EB7 #5962D0 #888FDD

Accessibility & contrast

On white

8.34

#343EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#343EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EB7

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EB7	#FFFFFF	#000000	##FFFFFF
##343EB7	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BB

Deuteranopia (green-blind)

#0048B5

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343eb7;
/* rgb */ color: rgb(52, 62, 183);
/* oklch */ color: oklch(43.8% 0.188 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e73ce',
    500: '#343eb7',
    950: '#000000',
  },
}

SCSS

$custom: #343eb7;
$custom-light: #7e73ce;
$custom-dark: #000000;

JSON

{
  "hex": "#343eb7",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 183
  },
  "hsl": {
    "h": 235.42,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43843,
    "c": 0.18796,
    "h": 272.2
  },
  "luminance": 0.07594
}

Semantic roles & 50–950 ramp

primary

#343EB7

secondary

#C7C280

accent

#D449DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #343EB7

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

Preview Lab → · Contrast checker → · Palette generator →