#343CC0#343CC0

#343CC0 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.4% C 0.202 H 272.1°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#343CC0
RGB	rgb(52, 60, 192)
HSL	hsl(237, 57%, 48%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(72.9%, 68.7%, 0%, 24.7%)
CIE-LAB	lab(33.49, 41.24, -69.68)
CIE-LCH	lch(33.49, 80.97, 300.62°)
OKLab	oklab(44.36% 0.0075 -0.2015)
OKLCH	oklch(44.36% 0.202 272.1)
XYZ	xyz(12.5433, 7.7663, 50.6969)
Luminance	0.0777 (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

#343CC0 #C0B834

analogous

#3482C0 #343CC0 #7234C0

triadic

#343CC0 #C0343C #3CC034

tetradic

#343CC0 #C03482 #C0B834 #34C072

square

#343CC0 #C03482 #C0B834 #34C072

split-complementary

#343CC0 #C07234 #82C034

monochromatic

#1A1E60 #272D90 #343CC0 #5E65D3 #8E93E0

Accessibility & contrast

On white

8.22

#343CC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#343CC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CC0

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CC0	#FFFFFF	#000000	##FFFFFF
##343CC0	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C4

Deuteranopia (green-blind)

#0048BE

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343cc0;
/* rgb */ color: rgb(52, 60, 192);
/* oklch */ color: oklch(44.4% 0.202 272.1);

Tailwind

colors: {
  custom: {
    50: '#8072d4',
    500: '#343cc0',
    950: '#000000',
  },
}

SCSS

$custom: #343cc0;
$custom-light: #8072d4;
$custom-dark: #000000;

JSON

{
  "hex": "#343cc0",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 192
  },
  "hsl": {
    "h": 236.571,
    "s": 57.377,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44364,
    "c": 0.20169,
    "h": 272.1
  },
  "luminance": 0.07768
}

Semantic roles & 50–950 ramp

primary

#343CC0

secondary

#CBC785

accent

#D847E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343CC0

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

Preview Lab → · Contrast checker → · Palette generator →