#3748C2#3748C2

#3748C2 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.8% C 0.190 H 270.9°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#3748C2
RGB	rgb(55, 72, 194)
HSL	hsl(233, 56%, 49%)
HSV	hsv(233, 72%, 76%)
CMYK	cmyk(71.6%, 62.9%, 0%, 23.9%)
CIE-LAB	lab(36.63, 34.83, -65.70)
CIE-LCH	lch(36.63, 74.36, 297.93°)
OKLab	oklab(46.75% 0.0029 -0.1898)
OKLCH	oklch(46.75% 0.19 270.9)
XYZ	xyz(13.6272, 9.3406, 52.1132)
Luminance	0.0934 (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

#3748C2 #C2B137

analogous

#378EC2 #3748C2 #6C37C2

triadic

#3748C2 #C23748 #48C237

tetradic

#3748C2 #C2378E #C2B137 #37C26C

square

#3748C2 #C2378E #C2B137 #37C26C

split-complementary

#3748C2 #C26C37 #8EC237

monochromatic

#1C2563 #293692 #3748C2 #6371D3 #939CE0

Accessibility & contrast

On white

7.32

#3748C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#3748C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3748C2

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3748C2	#FFFFFF	#000000	##FFFFFF
##3748C2	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC6

Deuteranopia (green-blind)

#0050C0

Tritanopia (blue-blind)

#00677E

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3748c2;
/* rgb */ color: rgb(55, 72, 194);
/* oklch */ color: oklch(46.8% 0.190 270.9);

Tailwind

colors: {
  custom: {
    50: '#817bd5',
    500: '#3748c2',
    950: '#000000',
  },
}

SCSS

$custom: #3748c2;
$custom-light: #817bd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3748c2",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 194
  },
  "hsl": {
    "h": 232.662,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46754,
    "c": 0.18978,
    "h": 270.9
  },
  "luminance": 0.09342
}

Semantic roles & 50–950 ramp

primary

#3748C2

secondary

#CBC389

accent

#CD49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3748C2

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

Preview Lab → · Contrast checker → · Palette generator →