#343FBE#343FBE

#343FBE is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.7% C 0.196 H 271.7°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#343FBE
RGB	rgb(52, 63, 190)
HSL	hsl(235, 57%, 47%)
HSV	hsv(235, 73%, 75%)
CMYK	cmyk(72.6%, 66.8%, 0%, 25.5%)
CIE-LAB	lab(33.99, 38.71, -67.70)
CIE-LCH	lch(33.99, 77.98, 299.76°)
OKLab	oklab(44.67% 0.0059 -0.1957)
OKLCH	oklch(44.67% 0.196 271.7)
XYZ	xyz(12.4848, 8.0015, 49.5917)
Luminance	0.0800 (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

#343FBE #BEB334

analogous

#3484BE #343FBE #6E34BE

triadic

#343FBE #BE343F #3FBE34

tetradic

#343FBE #BE3484 #BEB334 #34BE6E

square

#343FBE #BE3484 #BEB334 #34BE6E

split-complementary

#343FBE #BE6E34 #84BE34

monochromatic

#1A1F5E #272F8E #343FBE #5D66D3 #8D93E0

Accessibility & contrast

On white

8.08

#343FBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#343FBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FBE

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FBE	#FFFFFF	#000000	##FFFFFF
##343FBE	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#0049BC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #343fbe;
/* rgb */ color: rgb(52, 63, 190);
/* oklch */ color: oklch(44.7% 0.196 271.7);

Tailwind

colors: {
  custom: {
    50: '#7f74d3',
    500: '#343fbe',
    950: '#000000',
  },
}

SCSS

$custom: #343fbe;
$custom-light: #7f74d3;
$custom-dark: #000000;

JSON

{
  "hex": "#343fbe",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 190
  },
  "hsl": {
    "h": 235.217,
    "s": 57.025,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44667,
    "c": 0.19582,
    "h": 271.7
  },
  "luminance": 0.08003
}

Semantic roles & 50–950 ramp

primary

#343FBE

secondary

#CAC484

accent

#D448E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343FBE

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

Preview Lab → · Contrast checker → · Palette generator →