#3747C3#3747C3

#3747C3 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.7% C 0.192 H 271.1°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#3747C3
RGB	rgb(55, 71, 195)
HSL	hsl(233, 56%, 49%)
HSV	hsv(233, 72%, 76%)
CMYK	cmyk(71.8%, 63.6%, 0%, 23.5%)
CIE-LAB	lab(36.48, 35.82, -66.54)
CIE-LCH	lch(36.48, 75.57, 298.29°)
OKLab	oklab(46.67% 0.0035 -0.1922)
OKLCH	oklch(46.67% 0.192 271.1)
XYZ	xyz(13.6758, 9.2574, 52.6853)
Luminance	0.0926 (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

#3747C3 #C3B337

analogous

#378DC3 #3747C3 #6D37C3

triadic

#3747C3 #C33747 #47C337

tetradic

#3747C3 #C3378D #C3B337 #37C36D

square

#3747C3 #C3378D #C3B337 #37C36D

split-complementary

#3747C3 #C36D37 #8DC337

monochromatic

#1C2464 #2A3693 #3747C3 #6471D3 #949CE1

Accessibility & contrast

On white

7.36

#3747C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3747C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3747C3

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3747C3	#FFFFFF	#000000	##FFFFFF
##3747C3	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#004FC1

Tritanopia (blue-blind)

#00677E

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3747c3;
/* rgb */ color: rgb(55, 71, 195);
/* oklch */ color: oklch(46.7% 0.192 271.1);

Tailwind

colors: {
  custom: {
    50: '#817ad6',
    500: '#3747c3',
    950: '#000000',
  },
}

SCSS

$custom: #3747c3;
$custom-light: #817ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#3747c3",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 195
  },
  "hsl": {
    "h": 233.143,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.46665,
    "c": 0.19226,
    "h": 271.1
  },
  "luminance": 0.09259
}

Semantic roles & 50–950 ramp

primary

#3747C3

secondary

#CCC48A

accent

#CE49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3747C3

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

Preview Lab → · Contrast checker → · Palette generator →