#343DC9#343DC9

#343DC9 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.4% C 0.212 H 271.6°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#343DC9
RGB	rgb(52, 61, 201)
HSL	hsl(236, 59%, 50%)
HSV	hsv(236, 74%, 79%)
CMYK	cmyk(74.1%, 69.7%, 0%, 21.2%)
CIE-LAB	lab(34.57, 43.72, -73.18)
CIE-LCH	lch(34.57, 85.24, 300.85°)
OKLab	oklab(45.4% 0.0059 -0.2118)
OKLCH	oklch(45.4% 0.212 271.6)
XYZ	xyz(13.6240, 8.2832, 56.1278)
Luminance	0.0828 (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

#343DC9 #C9C034

analogous

#3487C9 #343DC9 #7634C9

triadic

#343DC9 #C9343D #3DC934

tetradic

#343DC9 #C93487 #C9C034 #34C976

square

#343DC9 #C93487 #C9C034 #34C976

split-complementary

#343DC9 #C97634 #87C934

monochromatic

#1B1F68 #272E98 #343DC9 #636AD7 #9499E3

Accessibility & contrast

On white

7.90

#343DC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#343DC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DC9

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DC9	#FFFFFF	#000000	##FFFFFF
##343DC9	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CD

Deuteranopia (green-blind)

#004AC6

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #343dc9;
/* rgb */ color: rgb(52, 61, 201);
/* oklch */ color: oklch(45.4% 0.212 271.6);

Tailwind

colors: {
  custom: {
    50: '#8273db',
    500: '#343dc9',
    950: '#000000',
  },
}

SCSS

$custom: #343dc9;
$custom-light: #8273db;
$custom-dark: #000000;

JSON

{
  "hex": "#343dc9",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 201
  },
  "hsl": {
    "h": 236.376,
    "s": 58.893,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45398,
    "c": 0.21184,
    "h": 271.6
  },
  "luminance": 0.08285
}

Semantic roles & 50–950 ramp

primary

#343DC9

secondary

#CECA8A

accent

#D946E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343DC9

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

Preview Lab → · Contrast checker → · Palette generator →