#343DBE#343DBE

#343DBE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.3% C 0.198 H 272.1°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#343DBE
RGB	rgb(52, 61, 190)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 73%, 75%)
CMYK	cmyk(72.6%, 67.9%, 0%, 25.5%)
CIE-LAB	lab(33.53, 39.94, -68.45)
CIE-LCH	lch(33.53, 79.25, 300.26°)
OKLab	oklab(44.34% 0.0071 -0.1979)
OKLCH	oklch(44.34% 0.198 272.1)
XYZ	xyz(12.3760, 7.7840, 49.5554)
Luminance	0.0779 (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

#343DBE #BEB534

analogous

#3482BE #343DBE #7034BE

triadic

#343DBE #BE343D #3DBE34

tetradic

#343DBE #BE3482 #BEB534 #34BE70

square

#343DBE #BE3482 #BEB534 #34BE70

split-complementary

#343DBE #BE7034 #82BE34

monochromatic

#1A1E5E #272E8E #343DBE #5D64D3 #8D92E0

Accessibility & contrast

On white

8.21

#343DBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#343DBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DBE

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DBE	#FFFFFF	#000000	##FFFFFF
##343DBE	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0048BC

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343dbe;
/* rgb */ color: rgb(52, 61, 190);
/* oklch */ color: oklch(44.3% 0.198 272.1);

Tailwind

colors: {
  custom: {
    50: '#8073d3',
    500: '#343dbe',
    950: '#000000',
  },
}

SCSS

$custom: #343dbe;
$custom-light: #8073d3;
$custom-dark: #000000;

JSON

{
  "hex": "#343dbe",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 190
  },
  "hsl": {
    "h": 236.087,
    "s": 57.025,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44335,
    "c": 0.19806,
    "h": 272.1
  },
  "luminance": 0.07785
}

Semantic roles & 50–950 ramp

primary

#343DBE

secondary

#CAC584

accent

#D648E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DBE

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

Preview Lab → · Contrast checker → · Palette generator →