#343BC0#343BC0

#343BC0 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.2% C 0.203 H 272.3°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#343BC0
RGB	rgb(52, 59, 192)
HSL	hsl(237, 57%, 48%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(72.9%, 69.3%, 0%, 24.7%)
CIE-LAB	lab(33.27, 41.84, -70.05)
CIE-LCH	lch(33.27, 81.59, 300.85°)
OKLab	oklab(44.2% 0.0081 -0.2026)
OKLCH	oklch(44.2% 0.203 272.3)
XYZ	xyz(12.4914, 7.6625, 50.6796)
Luminance	0.0766 (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

#343BC0 #C0B934

analogous

#3481C0 #343BC0 #7334C0

triadic

#343BC0 #C0343B #3BC034

tetradic

#343BC0 #C03481 #C0B934 #34C073

square

#343BC0 #C03481 #C0B934 #34C073

split-complementary

#343BC0 #C07334 #81C034

monochromatic

#1A1D60 #272C90 #343BC0 #5E64D3 #8E92E0

Accessibility & contrast

On white

8.29

#343BC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#343BC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BC0

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BC0	#FFFFFF	#000000	##FFFFFF
##343BC0	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C4

Deuteranopia (green-blind)

#0048BE

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343bc0;
/* rgb */ color: rgb(52, 59, 192);
/* oklch */ color: oklch(44.2% 0.203 272.3);

Tailwind

colors: {
  custom: {
    50: '#8072d4',
    500: '#343bc0',
    950: '#000000',
  },
}

SCSS

$custom: #343bc0;
$custom-light: #8072d4;
$custom-dark: #000000;

JSON

{
  "hex": "#343bc0",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 192
  },
  "hsl": {
    "h": 237,
    "s": 57.377,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44204,
    "c": 0.20277,
    "h": 272.3
  },
  "luminance": 0.07664
}

Semantic roles & 50–950 ramp

primary

#343BC0

secondary

#CBC785

accent

#D947E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343BC0

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

Preview Lab → · Contrast checker → · Palette generator →