#3949C4#3949C4

#3949C4 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.2% C 0.191 H 271.3°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#3949C4
RGB	rgb(57, 73, 196)
HSL	hsl(233, 55%, 50%)
HSV	hsv(233, 71%, 77%)
CMYK	cmyk(70.9%, 62.8%, 0%, 23.1%)
CIE-LAB	lab(37.15, 35.15, -66.02)
CIE-LCH	lch(37.15, 74.79, 298.04°)
OKLab	oklab(47.22% 0.0042 -0.1906)
OKLCH	oklch(47.22% 0.191 271.3)
XYZ	xyz(14.0303, 9.6191, 53.3311)
Luminance	0.0962 (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

#3949C4 #C4B439

analogous

#398EC4 #3949C4 #6F39C4

triadic

#3949C4 #C43949 #49C439

tetradic

#3949C4 #C4398E #C4B439 #39C46F

square

#3949C4 #C4398E #C4B439 #39C46F

split-complementary

#3949C4 #C46F39 #8EC439

monochromatic

#1D2665 #2B3795 #3949C4 #6774D3 #979FE1

Accessibility & contrast

On white

7.18

#3949C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3949C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949C4

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949C4	#FFFFFF	#000000	##FFFFFF
##3949C4	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC8

Deuteranopia (green-blind)

#0051C2

Tritanopia (blue-blind)

#00697F

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3949c4;
/* rgb */ color: rgb(57, 73, 196);
/* oklch */ color: oklch(47.2% 0.191 271.3);

Tailwind

colors: {
  custom: {
    50: '#827bd7',
    500: '#3949c4',
    950: '#000000',
  },
}

SCSS

$custom: #3949c4;
$custom-light: #827bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3949c4",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 196
  },
  "hsl": {
    "h": 233.094,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47216,
    "c": 0.19069,
    "h": 271.3
  },
  "luminance": 0.0962
}

Semantic roles & 50–950 ramp

primary

#3949C4

secondary

#CCC58D

accent

#CD4ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3949C4

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

Preview Lab → · Contrast checker → · Palette generator →