#343BC5#343BC5

#343BC5 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.7% C 0.209 H 272.0°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#343BC5
RGB	rgb(52, 59, 197)
HSL	hsl(237, 58%, 49%)
HSV	hsv(237, 74%, 77%)
CMYK	cmyk(73.6%, 70.1%, 0%, 22.7%)
CIE-LAB	lab(33.75, 43.54, -72.19)
CIE-LCH	lch(33.75, 84.31, 301.10°)
OKLab	oklab(44.69% 0.0074 -0.2089)
OKLCH	oklch(44.69% 0.209 272)
XYZ	xyz(13.0548, 7.8879, 53.6470)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343BC5 #C5BE34

analogous

#3484C5 #343BC5 #7634C5

triadic

#343BC5 #C5343B #3BC534

tetradic

#343BC5 #C53484 #C5BE34 #34C576

square

#343BC5 #C53484 #C5BE34 #34C576

split-complementary

#343BC5 #C57634 #84C534

monochromatic

#1A1E64 #272D95 #343BC5 #6167D5 #9195E2

Accessibility & contrast

On white

8.15

#343BC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#343BC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BC5

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BC5	#FFFFFF	#000000	##FFFFFF
##343BC5	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#0048C2

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343bc5;
/* rgb */ color: rgb(52, 59, 197);
/* oklch */ color: oklch(44.7% 0.209 272.0);

Tailwind

colors: {
  custom: {
    50: '#8172d8',
    500: '#343bc5',
    950: '#000000',
  },
}

SCSS

$custom: #343bc5;
$custom-light: #8172d8;
$custom-dark: #000000;

JSON

{
  "hex": "#343bc5",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 197
  },
  "hsl": {
    "h": 237.103,
    "s": 58.233,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44694,
    "c": 0.209,
    "h": 272
  },
  "luminance": 0.07889
}

Semantic roles & 50–950 ramp

primary

#343BC5

secondary

#CDCA88

accent

#DA46E1

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343BC5

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

Preview Lab → · Contrast checker → · Palette generator →