#3753C6#3753C6

#3753C6 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.1% C 0.182 H 268.4°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#3753C6
RGB	rgb(55, 83, 198)
HSL	hsl(228, 57%, 50%)
HSV	hsv(228, 72%, 78%)
CMYK	cmyk(72.2%, 58.1%, 0%, 22.4%)
CIE-LAB	lab(39.71, 29.24, -63.01)
CIE-LCH	lch(39.71, 69.47, 294.89°)
OKLab	oklab(49.13% -0.005 -0.1818)
OKLCH	oklch(49.13% 0.182 268.4)
XYZ	xyz(14.8583, 11.0744, 54.7696)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753C6 #C6AA37

analogous

#379BC6 #3753C6 #6337C6

triadic

#3753C6 #C63753 #53C637

tetradic

#3753C6 #C6379B #C6AA37 #37C663

square

#3753C6 #C6379B #C6AA37 #37C663

split-complementary

#3753C6 #C66337 #9BC637

monochromatic

#1C2B66 #2A3F96 #3753C6 #667BD4 #96A5E2

Accessibility & contrast

On white

6.53

#3753C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3753C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753C6

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753C6	#FFFFFF	#000000	##FFFFFF
##3753C6	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CA

Deuteranopia (green-blind)

#0057C4

Tritanopia (blue-blind)

#007084

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3753c6;
/* rgb */ color: rgb(55, 83, 198);
/* oklch */ color: oklch(49.1% 0.182 268.4);

Tailwind

colors: {
  custom: {
    50: '#8183d8',
    500: '#3753c6',
    950: '#000000',
  },
}

SCSS

$custom: #3753c6;
$custom-light: #8183d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3753c6",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 198
  },
  "hsl": {
    "h": 228.252,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.49134,
    "c": 0.18183,
    "h": 268.4
  },
  "luminance": 0.11076
}

Semantic roles & 50–950 ramp

primary

#3753C6

secondary

#CDC08C

accent

#C248E0

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3753C6

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

Preview Lab → · Contrast checker → · Palette generator →