#3753C4#3753C4

#3753C4 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.0% C 0.179 H 268.4°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3753C4
RGB	rgb(55, 83, 196)
HSL	hsl(228, 56%, 49%)
HSV	hsv(228, 72%, 77%)
CMYK	cmyk(71.9%, 57.7%, 0%, 23.1%)
CIE-LAB	lab(39.55, 28.51, -62.10)
CIE-LCH	lch(39.55, 68.34, 294.66°)
OKLab	oklab(48.97% -0.0051 -0.1791)
OKLCH	oklch(48.97% 0.179 268.4)
XYZ	xyz(14.6292, 10.9827, 53.5628)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753C4 #C4A837

analogous

#379AC4 #3753C4 #6237C4

triadic

#3753C4 #C43753 #53C437

tetradic

#3753C4 #C4379A #C4A837 #37C462

square

#3753C4 #C4379A #C4A837 #37C462

split-complementary

#3753C4 #C46237 #9AC437

monochromatic

#1C2B64 #2A3F94 #3753C4 #657BD4 #94A4E1

Accessibility & contrast

On white

6.57

#3753C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3753C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753C4

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753C4	#FFFFFF	#000000	##FFFFFF
##3753C4	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#0057C2

Tritanopia (blue-blind)

#006F83

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3753c4;
/* rgb */ color: rgb(55, 83, 196);
/* oklch */ color: oklch(49.0% 0.179 268.4);

Tailwind

colors: {
  custom: {
    50: '#8083d7',
    500: '#3753c4',
    950: '#000000',
  },
}

SCSS

$custom: #3753c4;
$custom-light: #8083d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3753c4",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 196
  },
  "hsl": {
    "h": 228.085,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4897,
    "c": 0.17915,
    "h": 268.4
  },
  "luminance": 0.10984
}

Semantic roles & 50–950 ramp

primary

#3753C4

secondary

#CCBF8B

accent

#C148DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3753C4

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

Preview Lab → · Contrast checker → · Palette generator →