#3753C2#3753C2

#3753C2 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.8% C 0.176 H 268.3°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3753C2
RGB	rgb(55, 83, 194)
HSL	hsl(228, 56%, 49%)
HSV	hsv(228, 72%, 76%)
CMYK	cmyk(71.6%, 57.2%, 0%, 23.9%)
CIE-LAB	lab(39.40, 27.78, -61.19)
CIE-LCH	lch(39.40, 67.20, 294.42°)
OKLab	oklab(48.81% -0.0052 -0.1764)
OKLCH	oklch(48.81% 0.176 268.3)
XYZ	xyz(14.4030, 10.8923, 52.3718)
Luminance	0.1089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753C2 #C2A637

analogous

#3799C2 #3753C2 #6137C2

triadic

#3753C2 #C23753 #53C237

tetradic

#3753C2 #C23799 #C2A637 #37C261

square

#3753C2 #C23799 #C2A637 #37C261

split-complementary

#3753C2 #C26137 #99C237

monochromatic

#1C2A63 #293F92 #3753C2 #637AD3 #93A3E0

Accessibility & contrast

On white

6.61

#3753C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3753C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753C2

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753C2	#FFFFFF	#000000	##FFFFFF
##3753C2	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C6

Deuteranopia (green-blind)

#0057C0

Tritanopia (blue-blind)

#006E82

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3753c2;
/* rgb */ color: rgb(55, 83, 194);
/* oklch */ color: oklch(48.8% 0.176 268.3);

Tailwind

colors: {
  custom: {
    50: '#8083d5',
    500: '#3753c2',
    950: '#000000',
  },
}

SCSS

$custom: #3753c2;
$custom-light: #8083d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3753c2",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 194
  },
  "hsl": {
    "h": 227.914,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48808,
    "c": 0.17648,
    "h": 268.3
  },
  "luminance": 0.10894
}

Semantic roles & 50–950 ramp

primary

#3753C2

secondary

#CBBE89

accent

#C149DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3753C2

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

Preview Lab → · Contrast checker → · Palette generator →