#3949C0#3949C0

#3949C0 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.9% C 0.185 H 271.3°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#3949C0
RGB	rgb(57, 73, 192)
HSL	hsl(233, 54%, 49%)
HSV	hsv(233, 70%, 75%)
CMYK	cmyk(70.3%, 62%, 0%, 24.7%)
CIE-LAB	lab(36.82, 33.74, -64.22)
CIE-LCH	lch(36.82, 72.55, 297.71°)
OKLab	oklab(46.87% 0.0043 -0.1854)
OKLCH	oklch(46.87% 0.185 271.3)
XYZ	xyz(13.5811, 9.4394, 50.9652)
Luminance	0.0944 (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

#3949C0 #C0B039

analogous

#398DC0 #3949C0 #6D39C0

triadic

#3949C0 #C03949 #49C039

tetradic

#3949C0 #C0398D #C0B039 #39C06D

square

#3949C0 #C0398D #C0B039 #39C06D

split-complementary

#3949C0 #C06D39 #8DC039

monochromatic

#1D2562 #2B3791 #3949C0 #6572D1 #949DDF

Accessibility & contrast

On white

7.27

#3949C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#3949C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949C0

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949C0	#FFFFFF	#000000	##FFFFFF
##3949C0	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC4

Deuteranopia (green-blind)

#0051BE

Tritanopia (blue-blind)

#00677D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3949c0;
/* rgb */ color: rgb(57, 73, 192);
/* oklch */ color: oklch(46.9% 0.185 271.3);

Tailwind

colors: {
  custom: {
    50: '#817bd4',
    500: '#3949c0',
    950: '#000000',
  },
}

SCSS

$custom: #3949c0;
$custom-light: #817bd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3949c0",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 192
  },
  "hsl": {
    "h": 232.889,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46868,
    "c": 0.18543,
    "h": 271.3
  },
  "luminance": 0.09441
}

Semantic roles & 50–950 ramp

primary

#3949C0

secondary

#CBC38A

accent

#CC4ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3949C0

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

Preview Lab → · Contrast checker → · Palette generator →