#3947C0#3947C0

#3947C0 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.5% C 0.188 H 271.8°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#3947C0
RGB	rgb(57, 71, 192)
HSL	hsl(234, 54%, 49%)
HSV	hsv(234, 70%, 75%)
CMYK	cmyk(70.3%, 63%, 0%, 24.7%)
CIE-LAB	lab(36.33, 35.01, -65.02)
CIE-LCH	lch(36.33, 73.84, 298.30°)
OKLab	oklab(46.51% 0.0058 -0.1877)
OKLCH	oklch(46.51% 0.188 271.8)
XYZ	xyz(13.4518, 9.1808, 50.9221)
Luminance	0.0918 (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

#3947C0 #C0B239

analogous

#398BC0 #3947C0 #6F39C0

triadic

#3947C0 #C03947 #47C039

tetradic

#3947C0 #C0398B #C0B239 #39C06F

square

#3947C0 #C0398B #C0B239 #39C06F

split-complementary

#3947C0 #C06F39 #8BC039

monochromatic

#1D2462 #2B3691 #3947C0 #6570D1 #949CDF

Accessibility & contrast

On white

7.40

#3947C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3947C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947C0

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947C0	#FFFFFF	#000000	##FFFFFF
##3947C0	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC4

Deuteranopia (green-blind)

#004FBE

Tritanopia (blue-blind)

#00667D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3947c0;
/* rgb */ color: rgb(57, 71, 192);
/* oklch */ color: oklch(46.5% 0.188 271.8);

Tailwind

colors: {
  custom: {
    50: '#817ad4',
    500: '#3947c0',
    950: '#000000',
  },
}

SCSS

$custom: #3947c0;
$custom-light: #817ad4;
$custom-dark: #000000;

JSON

{
  "hex": "#3947c0",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 192
  },
  "hsl": {
    "h": 233.778,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46509,
    "c": 0.18782,
    "h": 271.8
  },
  "luminance": 0.09182
}

Semantic roles & 50–950 ramp

primary

#3947C0

secondary

#CBC48A

accent

#CE4ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3947C0

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

Preview Lab → · Contrast checker → · Palette generator →