#343CC3#343CC3

#343CC3 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.7% C 0.205 H 272.0°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#343CC3
RGB	rgb(52, 60, 195)
HSL	hsl(237, 58%, 48%)
HSV	hsv(237, 73%, 76%)
CMYK	cmyk(73.3%, 69.2%, 0%, 23.5%)
CIE-LAB	lab(33.77, 42.27, -70.98)
CIE-LCH	lch(33.77, 82.61, 300.77°)
OKLab	oklab(44.66% 0.0071 -0.2053)
OKLCH	oklch(44.66% 0.205 272)
XYZ	xyz(12.8790, 7.9006, 52.4654)
Luminance	0.0790 (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

#343CC3 #C3BB34

analogous

#3483C3 #343CC3 #7334C3

triadic

#343CC3 #C3343C #3CC334

tetradic

#343CC3 #C33483 #C3BB34 #34C373

square

#343CC3 #C33483 #C3BB34 #34C373

split-complementary

#343CC3 #C37334 #83C334

monochromatic

#1A1E62 #272D93 #343CC3 #6066D5 #9095E1

Accessibility & contrast

On white

8.14

#343CC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#343CC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CC3

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CC3	#FFFFFF	#000000	##FFFFFF
##343CC3	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C7

Deuteranopia (green-blind)

#0049C1

Tritanopia (blue-blind)

#00617B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343cc3;
/* rgb */ color: rgb(52, 60, 195);
/* oklch */ color: oklch(44.7% 0.205 272.0);

Tailwind

colors: {
  custom: {
    50: '#8172d6',
    500: '#343cc3',
    950: '#000000',
  },
}

SCSS

$custom: #343cc3;
$custom-light: #8172d6;
$custom-dark: #000000;

JSON

{
  "hex": "#343cc3",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 195
  },
  "hsl": {
    "h": 236.643,
    "s": 57.895,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44655,
    "c": 0.20545,
    "h": 272
  },
  "luminance": 0.07902
}

Semantic roles & 50–950 ramp

primary

#343CC3

secondary

#CCC887

accent

#D847E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343CC3

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

Preview Lab → · Contrast checker → · Palette generator →