#343EC9#343EC9

#343EC9 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.6% C 0.211 H 271.5°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#343EC9
RGB	rgb(52, 62, 201)
HSL	hsl(236, 59%, 50%)
HSV	hsv(236, 74%, 79%)
CMYK	cmyk(74.1%, 69.2%, 0%, 21.2%)
CIE-LAB	lab(34.78, 43.12, -72.82)
CIE-LCH	lch(34.78, 84.63, 300.63°)
OKLab	oklab(45.56% 0.0054 -0.2107)
OKLCH	oklch(45.56% 0.211 271.5)
XYZ	xyz(13.6778, 8.3909, 56.1458)
Luminance	0.0839 (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

#343EC9 #C9BF34

analogous

#3489C9 #343EC9 #7534C9

triadic

#343EC9 #C9343E #3EC934

tetradic

#343EC9 #C93489 #C9BF34 #34C975

square

#343EC9 #C93489 #C9BF34 #34C975

split-complementary

#343EC9 #C97534 #89C934

monochromatic

#1B2068 #272F98 #343EC9 #636BD7 #9499E3

Accessibility & contrast

On white

7.84

#343EC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#343EC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EC9

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EC9	#FFFFFF	#000000	##FFFFFF
##343EC9	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CD

Deuteranopia (green-blind)

#004BC6

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #343ec9;
/* rgb */ color: rgb(52, 62, 201);
/* oklch */ color: oklch(45.6% 0.211 271.5);

Tailwind

colors: {
  custom: {
    50: '#8274db',
    500: '#343ec9',
    950: '#000000',
  },
}

SCSS

$custom: #343ec9;
$custom-light: #8274db;
$custom-dark: #000000;

JSON

{
  "hex": "#343ec9",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 201
  },
  "hsl": {
    "h": 235.973,
    "s": 58.893,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45556,
    "c": 0.21078,
    "h": 271.5
  },
  "luminance": 0.08392
}

Semantic roles & 50–950 ramp

primary

#343EC9

secondary

#CECA8A

accent

#D846E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343EC9

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

Preview Lab → · Contrast checker → · Palette generator →