#3749C2#3749C2

#3749C2 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.189 H 270.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#3749C2
RGB	rgb(55, 73, 194)
HSL	hsl(232, 56%, 49%)
HSV	hsv(232, 72%, 76%)
CMYK	cmyk(71.6%, 62.4%, 0%, 23.9%)
CIE-LAB	lab(36.88, 34.20, -65.30)
CIE-LCH	lch(36.88, 73.71, 297.64°)
OKLab	oklab(46.93% 0.0022 -0.1886)
OKLCH	oklch(46.93% 0.189 270.7)
XYZ	xyz(13.6924, 9.4710, 52.1349)
Luminance	0.0947 (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

#3749C2 #C2B037

analogous

#378FC2 #3749C2 #6B37C2

triadic

#3749C2 #C23749 #49C237

tetradic

#3749C2 #C2378F #C2B037 #37C26B

square

#3749C2 #C2378F #C2B037 #37C26B

split-complementary

#3749C2 #C26B37 #8FC237

monochromatic

#1C2563 #293792 #3749C2 #6372D3 #939DE0

Accessibility & contrast

On white

7.26

#3749C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#3749C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3749C2

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3749C2	#FFFFFF	#000000	##FFFFFF
##3749C2	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC6

Deuteranopia (green-blind)

#0050C0

Tritanopia (blue-blind)

#00687E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3749c2;
/* rgb */ color: rgb(55, 73, 194);
/* oklch */ color: oklch(46.9% 0.189 270.7);

Tailwind

colors: {
  custom: {
    50: '#817bd5',
    500: '#3749c2',
    950: '#000000',
  },
}

SCSS

$custom: #3749c2;
$custom-light: #817bd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3749c2",
  "rgb": {
    "r": 55,
    "g": 73,
    "b": 194
  },
  "hsl": {
    "h": 232.23,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46934,
    "c": 0.1886,
    "h": 270.7
  },
  "luminance": 0.09472
}

Semantic roles & 50–950 ramp

primary

#3749C2

secondary

#CBC389

accent

#CC49DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3749C2

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

Preview Lab → · Contrast checker → · Palette generator →