#343CC1#343CC1

#343CC1 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.5% C 0.203 H 272.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#343CC1
RGB	rgb(52, 60, 193)
HSL	hsl(237, 58%, 48%)
HSV	hsv(237, 73%, 76%)
CMYK	cmyk(73.1%, 68.9%, 0%, 24.3%)
CIE-LAB	lab(33.59, 41.58, -70.12)
CIE-LCH	lch(33.59, 81.52, 300.67°)
OKLab	oklab(44.46% 0.0074 -0.2028)
OKLCH	oklch(44.46% 0.203 272.1)
XYZ	xyz(12.6544, 7.8107, 51.2825)
Luminance	0.0781 (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

#343CC1 #C1B934

analogous

#3482C1 #343CC1 #7334C1

triadic

#343CC1 #C1343C #3CC134

tetradic

#343CC1 #C13482 #C1B934 #34C173

square

#343CC1 #C13482 #C1B934 #34C173

split-complementary

#343CC1 #C17334 #82C134

monochromatic

#1A1E61 #272D91 #343CC1 #5E65D4 #8F93E1

Accessibility & contrast

On white

8.20

#343CC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#343CC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CC1

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CC1	#FFFFFF	#000000	##FFFFFF
##343CC1	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#00607A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343cc1;
/* rgb */ color: rgb(52, 60, 193);
/* oklch */ color: oklch(44.5% 0.203 272.1);

Tailwind

colors: {
  custom: {
    50: '#8072d5',
    500: '#343cc1',
    950: '#000000',
  },
}

SCSS

$custom: #343cc1;
$custom-light: #8072d5;
$custom-dark: #000000;

JSON

{
  "hex": "#343cc1",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 193
  },
  "hsl": {
    "h": 236.596,
    "s": 57.551,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44461,
    "c": 0.20294,
    "h": 272.1
  },
  "luminance": 0.07812
}

Semantic roles & 50–950 ramp

primary

#343CC1

secondary

#CBC786

accent

#D847E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343CC1

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

Preview Lab → · Contrast checker → · Palette generator →