#3947BC#3947BC

#3947BC is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.2% C 0.183 H 271.9°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#3947BC
RGB	rgb(57, 71, 188)
HSL	hsl(234, 53%, 48%)
HSV	hsv(234, 70%, 74%)
CMYK	cmyk(69.7%, 62.2%, 0%, 26.3%)
CIE-LAB	lab(36.00, 33.59, -63.22)
CIE-LCH	lch(36.00, 71.59, 297.98°)
OKLab	oklab(46.16% 0.0059 -0.1824)
OKLCH	oklch(46.16% 0.183 271.9)
XYZ	xyz(13.0146, 9.0059, 48.6196)
Luminance	0.0901 (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

#3947BC #BCAE39

analogous

#3988BC #3947BC #6D39BC

triadic

#3947BC #BC3947 #47BC39

tetradic

#3947BC #BC3988 #BCAE39 #39BC6D

square

#3947BC #BC3988 #BCAE39 #39BC6D

split-complementary

#3947BC #BC6D39 #88BC39

monochromatic

#1D245E #2B358D #3947BC #636ED0 #929ADE

Accessibility & contrast

On white

7.50

#3947BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3947BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947BC

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947BC	#FFFFFF	#000000	##FFFFFF
##3947BC	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3947bc;
/* rgb */ color: rgb(57, 71, 188);
/* oklch */ color: oklch(46.2% 0.183 271.9);

Tailwind

colors: {
  custom: {
    50: '#807ad1',
    500: '#3947bc',
    950: '#000000',
  },
}

SCSS

$custom: #3947bc;
$custom-light: #807ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3947bc",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 188
  },
  "hsl": {
    "h": 233.588,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4616,
    "c": 0.18255,
    "h": 271.9
  },
  "luminance": 0.09007
}

Semantic roles & 50–950 ramp

primary

#3947BC

secondary

#C9C288

accent

#CD4BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3947BC

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

Preview Lab → · Contrast checker → · Palette generator →