#3747C2#3747C2

#3747C2 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.6% C 0.191 H 271.1°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#3747C2
RGB	rgb(55, 71, 194)
HSL	hsl(233, 56%, 49%)
HSV	hsv(233, 72%, 76%)
CMYK	cmyk(71.6%, 63.4%, 0%, 23.9%)
CIE-LAB	lab(36.39, 35.46, -66.09)
CIE-LCH	lch(36.39, 75.01, 298.22°)
OKLab	oklab(46.58% 0.0036 -0.1909)
OKLCH	oklch(46.58% 0.191 271.1)
XYZ	xyz(13.5631, 9.2124, 52.0918)
Luminance	0.0921 (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

#3747C2 #C2B237

analogous

#378DC2 #3747C2 #6D37C2

triadic

#3747C2 #C23747 #47C237

tetradic

#3747C2 #C2378D #C2B237 #37C26D

square

#3747C2 #C2378D #C2B237 #37C26D

split-complementary

#3747C2 #C26D37 #8DC237

monochromatic

#1C2463 #293692 #3747C2 #6370D3 #939CE0

Accessibility & contrast

On white

7.39

#3747C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3747C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3747C2

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3747C2	#FFFFFF	#000000	##FFFFFF
##3747C2	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC6

Deuteranopia (green-blind)

#004FC0

Tritanopia (blue-blind)

#00677E

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3747c2;
/* rgb */ color: rgb(55, 71, 194);
/* oklch */ color: oklch(46.6% 0.191 271.1);

Tailwind

colors: {
  custom: {
    50: '#817ad5',
    500: '#3747c2',
    950: '#000000',
  },
}

SCSS

$custom: #3747c2;
$custom-light: #817ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3747c2",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 194
  },
  "hsl": {
    "h": 233.094,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46576,
    "c": 0.19096,
    "h": 271.1
  },
  "luminance": 0.09214
}

Semantic roles & 50–950 ramp

primary

#3747C2

secondary

#CBC489

accent

#CE49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3747C2

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

Preview Lab → · Contrast checker → · Palette generator →