#3947C1#3947C1

#3947C1 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.6% C 0.189 H 271.7°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#3947C1
RGB	rgb(57, 71, 193)
HSL	hsl(234, 54%, 49%)
HSV	hsv(234, 70%, 76%)
CMYK	cmyk(70.5%, 63.2%, 0%, 24.3%)
CIE-LAB	lab(36.41, 35.36, -65.47)
CIE-LCH	lch(36.41, 74.40, 298.37°)
OKLab	oklab(46.6% 0.0057 -0.189)
OKLCH	oklch(46.6% 0.189 271.7)
XYZ	xyz(13.5630, 9.2253, 51.5076)
Luminance	0.0923 (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

#3947C1 #C1B339

analogous

#398BC1 #3947C1 #6F39C1

triadic

#3947C1 #C13947 #47C139

tetradic

#3947C1 #C1398B #C1B339 #39C16F

square

#3947C1 #C1398B #C1B339 #39C16F

split-complementary

#3947C1 #C16F39 #8BC139

monochromatic

#1D2463 #2B3692 #3947C1 #6671D2 #959CE0

Accessibility & contrast

On white

7.38

#3947C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3947C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947C1

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947C1	#FFFFFF	#000000	##FFFFFF
##3947C1	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC5

Deuteranopia (green-blind)

#004FBF

Tritanopia (blue-blind)

#00667D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3947c1;
/* rgb */ color: rgb(57, 71, 193);
/* oklch */ color: oklch(46.6% 0.189 271.7);

Tailwind

colors: {
  custom: {
    50: '#817ad5',
    500: '#3947c1',
    950: '#000000',
  },
}

SCSS

$custom: #3947c1;
$custom-light: #817ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3947c1",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 193
  },
  "hsl": {
    "h": 233.824,
    "s": 54.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.46597,
    "c": 0.18913,
    "h": 271.7
  },
  "luminance": 0.09227
}

Semantic roles & 50–950 ramp

primary

#3947C1

secondary

#CBC48B

accent

#CF4ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3947C1

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

Preview Lab → · Contrast checker → · Palette generator →