#343CBE#343CBE

#343CBE is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.199 H 272.2°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#343CBE
RGB	rgb(52, 60, 190)
HSL	hsl(237, 57%, 47%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(72.6%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(33.30, 40.55, -68.82)
CIE-LCH	lch(33.30, 79.88, 300.51°)
OKLab	oklab(44.17% 0.0077 -0.199)
OKLCH	oklch(44.17% 0.199 272.2)
XYZ	xyz(12.3232, 7.6782, 49.5378)
Luminance	0.0768 (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

#343CBE #BEB634

analogous

#3481BE #343CBE #7134BE

triadic

#343CBE #BE343C #3CBE34

tetradic

#343CBE #BE3481 #BEB634 #34BE71

square

#343CBE #BE3481 #BEB634 #34BE71

split-complementary

#343CBE #BE7134 #81BE34

monochromatic

#1A1E5E #272D8E #343CBE #5D63D3 #8D91E0

Accessibility & contrast

On white

8.28

#343CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#343CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CBE

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CBE	#FFFFFF	#000000	##FFFFFF
##343CBE	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0048BC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343cbe;
/* rgb */ color: rgb(52, 60, 190);
/* oklch */ color: oklch(44.2% 0.199 272.2);

Tailwind

colors: {
  custom: {
    50: '#8072d3',
    500: '#343cbe',
    950: '#000000',
  },
}

SCSS

$custom: #343cbe;
$custom-light: #8072d3;
$custom-dark: #000000;

JSON

{
  "hex": "#343cbe",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 236.522,
    "s": 57.025,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44172,
    "c": 0.19917,
    "h": 272.2
  },
  "luminance": 0.07679
}

Semantic roles & 50–950 ramp

primary

#343CBE

secondary

#CAC684

accent

#D748E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343CBE

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

Preview Lab → · Contrast checker → · Palette generator →