#343AD1#343AD1

#343AD1 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.7% C 0.225 H 271.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#343AD1
RGB	rgb(52, 58, 209)
HSL	hsl(238, 63%, 51%)
HSV	hsv(238, 75%, 82%)
CMYK	cmyk(75.1%, 72.2%, 0%, 18%)
CIE-LAB	lab(34.72, 48.15, -77.58)
CIE-LCH	lch(34.72, 91.30, 301.83°)
OKLab	oklab(45.74% 0.0063 -0.2246)
OKLCH	oklch(45.74% 0.225 271.6)
XYZ	xyz(14.4340, 8.3581, 61.1618)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.30

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343AD1 #D1CB34

analogous

#3488D1 #343AD1 #7C34D1

triadic

#343AD1 #D1343A #3AD134

tetradic

#343AD1 #D13488 #D1CB34 #34D17C

square

#343AD1 #D13488 #D1CB34 #34D17C

split-complementary

#343AD1 #D17C34 #88D134

monochromatic

#1A1D71 #252AA3 #343AD1 #666ADC #989BE8

Accessibility & contrast

On white

7.86

#343AD1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#343AD1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343AD1

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343AD1	#FFFFFF	#000000	##FFFFFF
##343AD1	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D5

Deuteranopia (green-blind)

#004ACE

Tritanopia (blue-blind)

#006582

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #343ad1;
/* rgb */ color: rgb(52, 58, 209);
/* oklch */ color: oklch(45.7% 0.225 271.6);

Tailwind

colors: {
  custom: {
    50: '#8472e0',
    500: '#343ad1',
    950: '#000000',
  },
}

SCSS

$custom: #343ad1;
$custom-light: #8472e0;
$custom-dark: #000000;

JSON

{
  "hex": "#343ad1",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 209
  },
  "hsl": {
    "h": 237.707,
    "s": 63.052,
    "l": 51.176
  },
  "oklch": {
    "l": 0.45742,
    "c": 0.22465,
    "h": 271.6
  },
  "luminance": 0.0836
}

Semantic roles & 50–950 ramp

primary

#343AD1

secondary

#D3D08E

accent

#E042E6

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #343AD1

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

Preview Lab → · Contrast checker → · Palette generator →