#3947BD#3947BD

#3947BD is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.2% C 0.184 H 271.8°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#3947BD
RGB	rgb(57, 71, 189)
HSL	hsl(234, 54%, 48%)
HSV	hsv(234, 70%, 74%)
CMYK	cmyk(69.8%, 62.4%, 0%, 25.9%)
CIE-LAB	lab(36.08, 33.95, -63.67)
CIE-LCH	lch(36.08, 72.15, 298.06°)
OKLab	oklab(46.25% 0.0059 -0.1838)
OKLCH	oklch(46.25% 0.184 271.8)
XYZ	xyz(13.1228, 9.0492, 49.1893)
Luminance	0.0905 (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

#3947BD #BDAF39

analogous

#3989BD #3947BD #6D39BD

triadic

#3947BD #BD3947 #47BD39

tetradic

#3947BD #BD3989 #BDAF39 #39BD6D

square

#3947BD #BD3989 #BDAF39 #39BD6D

split-complementary

#3947BD #BD6D39 #89BD39

monochromatic

#1D245F #2B358E #3947BD #636FD0 #929ADE

Accessibility & contrast

On white

7.47

#3947BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#3947BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947BD

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947BD	#FFFFFF	#000000	##FFFFFF
##3947BD	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC1

Deuteranopia (green-blind)

#004FBB

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3947bd;
/* rgb */ color: rgb(57, 71, 189);
/* oklch */ color: oklch(46.2% 0.184 271.8);

Tailwind

colors: {
  custom: {
    50: '#817ad2',
    500: '#3947bd',
    950: '#000000',
  },
}

SCSS

$custom: #3947bd;
$custom-light: #817ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#3947bd",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 189
  },
  "hsl": {
    "h": 233.636,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46247,
    "c": 0.18387,
    "h": 271.8
  },
  "luminance": 0.0905
}

Semantic roles & 50–950 ramp

primary

#3947BD

secondary

#C9C289

accent

#CE4BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3947BD

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

Preview Lab → · Contrast checker → · Palette generator →