#343ACC#343ACC

#343ACC is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.2% C 0.219 H 271.8°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#343ACC
RGB	rgb(52, 58, 204)
HSL	hsl(238, 60%, 50%)
HSV	hsv(238, 75%, 80%)
CMYK	cmyk(74.5%, 71.6%, 0%, 20%)
CIE-LAB	lab(34.22, 46.49, -75.50)
CIE-LCH	lch(34.22, 88.66, 301.62°)
OKLab	oklab(45.24% 0.007 -0.2185)
OKLCH	oklch(45.24% 0.219 271.8)
XYZ	xyz(13.8246, 8.1143, 57.9527)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.06

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343ACC #CCC634

analogous

#3486CC #343ACC #7A34CC

triadic

#343ACC #CC343A #3ACC34

tetradic

#343ACC #CC3486 #CCC634 #34CC7A

square

#343ACC #CC3486 #CCC634 #34CC7A

split-complementary

#343ACC #CC7A34 #86CC34

monochromatic

#1B1E6B #272C9C #343ACC #6569D8 #9699E5

Accessibility & contrast

On white

8.01

#343ACC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#343ACC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343ACC

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343ACC	#FFFFFF	#000000	##FFFFFF
##343ACC	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D0

Deuteranopia (green-blind)

#0049C9

Tritanopia (blue-blind)

#00637F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #343acc;
/* rgb */ color: rgb(52, 58, 204);
/* oklch */ color: oklch(45.2% 0.219 271.8);

Tailwind

colors: {
  custom: {
    50: '#8371dd',
    500: '#343acc',
    950: '#000000',
  },
}

SCSS

$custom: #343acc;
$custom-light: #8371dd;
$custom-dark: #000000;

JSON

{
  "hex": "#343acc",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 204
  },
  "hsl": {
    "h": 237.632,
    "s": 59.843,
    "l": 50.196
  },
  "oklch": {
    "l": 0.45237,
    "c": 0.21861,
    "h": 271.8
  },
  "luminance": 0.08116
}

Semantic roles & 50–950 ramp

primary

#343ACC

secondary

#D0CD8C

accent

#DD45E3

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #343ACC

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

Preview Lab → · Contrast checker → · Palette generator →