#343DBD#343DBD

#343DBD is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.197 H 272.1°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#343DBD
RGB	rgb(52, 61, 189)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 72%, 74%)
CMYK	cmyk(72.5%, 67.7%, 0%, 25.9%)
CIE-LAB	lab(33.44, 39.59, -68.01)
CIE-LCH	lch(33.44, 78.70, 300.21°)
OKLab	oklab(44.24% 0.0072 -0.1967)
OKLCH	oklch(44.24% 0.197 272.1)
XYZ	xyz(12.2671, 7.7404, 48.9818)
Luminance	0.0774 (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

#343DBD #BDB434

analogous

#3482BD #343DBD #6F34BD

triadic

#343DBD #BD343D #3DBD34

tetradic

#343DBD #BD3482 #BDB434 #34BD6F

square

#343DBD #BD3482 #BDB434 #34BD6F

split-complementary

#343DBD #BD6F34 #82BD34

monochromatic

#1A1E5D #272E8D #343DBD #5C64D2 #8C92DF

Accessibility & contrast

On white

8.24

#343DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#343DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DBD

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DBD	#FFFFFF	#000000	##FFFFFF
##343DBD	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C1

Deuteranopia (green-blind)

#0048BB

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343dbd;
/* rgb */ color: rgb(52, 61, 189);
/* oklch */ color: oklch(44.2% 0.197 272.1);

Tailwind

colors: {
  custom: {
    50: '#7f73d2',
    500: '#343dbd',
    950: '#000000',
  },
}

SCSS

$custom: #343dbd;
$custom-light: #7f73d2;
$custom-dark: #000000;

JSON

{
  "hex": "#343dbd",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 189
  },
  "hsl": {
    "h": 236.058,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.4424,
    "c": 0.19679,
    "h": 272.1
  },
  "luminance": 0.07742
}

Semantic roles & 50–950 ramp

primary

#343DBD

secondary

#CAC583

accent

#D648E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DBD

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

Preview Lab → · Contrast checker → · Palette generator →