#343FCA#343FCA

#343FCA is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.8% C 0.211 H 271.3°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#343FCA
RGB	rgb(52, 63, 202)
HSL	hsl(236, 59%, 50%)
HSV	hsv(236, 74%, 79%)
CMYK	cmyk(74.3%, 68.8%, 0%, 20.8%)
CIE-LAB	lab(35.10, 42.86, -72.89)
CIE-LCH	lch(35.10, 84.55, 300.46°)
OKLab	oklab(45.81% 0.0047 -0.2109)
OKLCH	oklch(45.81% 0.211 271.3)
XYZ	xyz(13.8507, 8.5479, 56.7856)
Luminance	0.0855 (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

#343FCA #CABF34

analogous

#348ACA #343FCA #7434CA

triadic

#343FCA #CA343F #3FCA34

tetradic

#343FCA #CA348A #CABF34 #34CA74

square

#343FCA #CA348A #CABF34 #34CA74

split-complementary

#343FCA #CA7434 #8ACA34

monochromatic

#1B2169 #273099 #343FCA #646DD7 #959BE4

Accessibility & contrast

On white

7.75

#343FCA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#343FCA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FCA

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FCA	#FFFFFF	#000000	##FFFFFF
##343FCA	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACE

Deuteranopia (green-blind)

#004BC7

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #343fca;
/* rgb */ color: rgb(52, 63, 202);
/* oklch */ color: oklch(45.8% 0.211 271.3);

Tailwind

colors: {
  custom: {
    50: '#8275db',
    500: '#343fca',
    950: '#000000',
  },
}

SCSS

$custom: #343fca;
$custom-light: #8275db;
$custom-dark: #000000;

JSON

{
  "hex": "#343fca",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 202
  },
  "hsl": {
    "h": 235.6,
    "s": 59.055,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45811,
    "c": 0.21094,
    "h": 271.3
  },
  "luminance": 0.08549
}

Semantic roles & 50–950 ramp

primary

#343FCA

secondary

#CFCA8B

accent

#D746E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #343FCA

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

Preview Lab → · Contrast checker → · Palette generator →