#343AAD#343AAD

#343AAD is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.180 H 273.4°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#343AAD
RGB	rgb(52, 58, 173)
HSL	hsl(237, 54%, 44%)
HSV	hsv(237, 70%, 68%)
CMYK	cmyk(69.9%, 66.5%, 0%, 32.2%)
CIE-LAB	lab(31.28, 35.88, -62.05)
CIE-LCH	lch(31.28, 71.68, 300.03°)
OKLab	oklab(42.23% 0.0107 -0.1792)
OKLCH	oklch(42.23% 0.18 273.4)
XYZ	xyz(10.4695, 6.7723, 40.2825)
Luminance	0.0677 (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

#343AAD #ADA734

analogous

#3477AD #343AAD #6B34AD

triadic

#343AAD #AD343A #3AAD34

tetradic

#343AAD #AD3477 #ADA734 #34AD6B

square

#343AAD #AD3477 #ADA734 #34AD6B

split-complementary

#343AAD #AD6B34 #77AD34

monochromatic

#181A4F #262A7E #343AAD #5359CB #8286D9

Accessibility & contrast

On white

8.92

#343AAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#343AAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343AAD

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343AAD	#FFFFFF	#000000	##FFFFFF
##343AAD	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343aad;
/* rgb */ color: rgb(52, 58, 173);
/* oklch */ color: oklch(42.2% 0.180 273.4);

Tailwind

colors: {
  custom: {
    50: '#7c70c6',
    500: '#343aad',
    950: '#000000',
  },
}

SCSS

$custom: #343aad;
$custom-light: #7c70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#343aad",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 173
  },
  "hsl": {
    "h": 237.025,
    "s": 53.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42229,
    "c": 0.17956,
    "h": 273.4
  },
  "luminance": 0.06773
}

Semantic roles & 50–950 ramp

primary

#343AAD

secondary

#C3BF7A

accent

#D64BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #343AAD

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

Preview Lab → · Contrast checker → · Palette generator →