#343EAF#343EAF

#343EAF is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.177 H 272.5°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#343EAF
RGB	rgb(52, 62, 175)
HSL	hsl(235, 54%, 45%)
HSV	hsv(235, 70%, 69%)
CMYK	cmyk(70.3%, 64.6%, 0%, 31.4%)
CIE-LAB	lab(32.41, 34.05, -61.40)
CIE-LCH	lch(32.41, 70.21, 299.02°)
OKLab	oklab(43.11% 0.0077 -0.1773)
OKLCH	oklch(43.11% 0.177 272.5)
XYZ	xyz(10.8741, 7.2694, 41.3792)
Luminance	0.0727 (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

#343EAF #AFA534

analogous

#347CAF #343EAF #6834AF

triadic

#343EAF #AF343E #3EAF34

tetradic

#343EAF #AF347C #AFA534 #34AF68

square

#343EAF #AF347C #AFA534 #34AF68

split-complementary

#343EAF #AF6834 #7CAF34

monochromatic

#181D51 #262D80 #343EAF #545ECC #838ADA

Accessibility & contrast

On white

8.56

#343EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#343EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EAF

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EAF	#FFFFFF	#000000	##FFFFFF
##343EAF	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0047AD

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #343eaf;
/* rgb */ color: rgb(52, 62, 175);
/* oklch */ color: oklch(43.1% 0.177 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c73c8',
    500: '#343eaf',
    950: '#000000',
  },
}

SCSS

$custom: #343eaf;
$custom-light: #7c73c8;
$custom-dark: #000000;

JSON

{
  "hex": "#343eaf",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 175
  },
  "hsl": {
    "h": 235.122,
    "s": 54.185,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43108,
    "c": 0.17747,
    "h": 272.5
  },
  "luminance": 0.0727
}

Semantic roles & 50–950 ramp

primary

#343EAF

secondary

#C4BE7B

accent

#D24ADE

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343EAF

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

Preview Lab → · Contrast checker → · Palette generator →