#343BCD#343BCD

#343BCD is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.5% C 0.219 H 271.7°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#343BCD
RGB	rgb(52, 59, 205)
HSL	hsl(237, 60%, 50%)
HSV	hsv(237, 75%, 80%)
CMYK	cmyk(74.6%, 71.2%, 0%, 19.6%)
CIE-LAB	lab(34.53, 46.24, -75.57)
CIE-LCH	lch(34.53, 88.60, 301.46°)
OKLab	oklab(45.49% 0.0064 -0.2187)
OKLCH	oklch(45.49% 0.219 271.7)
XYZ	xyz(13.9959, 8.2643, 58.6033)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.90

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343BCD #CDC634

analogous

#3487CD #343BCD #7934CD

triadic

#343BCD #CD343B #3BCD34

tetradic

#343BCD #CD3487 #CDC634 #34CD79

square

#343BCD #CD3487 #CDC634 #34CD79

split-complementary

#343BCD #CD7934 #87CD34

monochromatic

#1B1E6C #272C9D #343BCD #656AD9 #969AE5

Accessibility & contrast

On white

7.91

#343BCD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#343BCD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BCD

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BCD	#FFFFFF	#000000	##FFFFFF
##343BCD	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D1

Deuteranopia (green-blind)

#004ACA

Tritanopia (blue-blind)

#006480

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #343bcd;
/* rgb */ color: rgb(52, 59, 205);
/* oklch */ color: oklch(45.5% 0.219 271.7);

Tailwind

colors: {
  custom: {
    50: '#8372de',
    500: '#343bcd',
    950: '#000000',
  },
}

SCSS

$custom: #343bcd;
$custom-light: #8372de;
$custom-dark: #000000;

JSON

{
  "hex": "#343bcd",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 205
  },
  "hsl": {
    "h": 237.255,
    "s": 60.474,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45487,
    "c": 0.21881,
    "h": 271.7
  },
  "luminance": 0.08266
}

Semantic roles & 50–950 ramp

primary

#343BCD

secondary

#D1CD8C

accent

#DC44E4

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #343BCD

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

Preview Lab → · Contrast checker → · Palette generator →