#3753C3#3753C3

#3753C3 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.9% C 0.178 H 268.3°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3753C3
RGB	rgb(55, 83, 195)
HSL	hsl(228, 56%, 49%)
HSV	hsv(228, 72%, 76%)
CMYK	cmyk(71.8%, 57.4%, 0%, 23.5%)
CIE-LAB	lab(39.47, 28.15, -61.65)
CIE-LCH	lch(39.47, 67.77, 294.54°)
OKLab	oklab(48.89% -0.0051 -0.1777)
OKLCH	oklch(48.89% 0.178 268.3)
XYZ	xyz(14.5157, 10.9374, 52.9653)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753C3 #C3A737

analogous

#3799C3 #3753C3 #6137C3

triadic

#3753C3 #C33753 #53C337

tetradic

#3753C3 #C33799 #C3A737 #37C361

square

#3753C3 #C33799 #C3A737 #37C361

split-complementary

#3753C3 #C36137 #99C337

monochromatic

#1C2A64 #2A3F93 #3753C3 #647AD3 #94A3E1

Accessibility & contrast

On white

6.59

#3753C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3753C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753C3

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753C3	#FFFFFF	#000000	##FFFFFF
##3753C3	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C7

Deuteranopia (green-blind)

#0057C1

Tritanopia (blue-blind)

#006F83

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3753c3;
/* rgb */ color: rgb(55, 83, 195);
/* oklch */ color: oklch(48.9% 0.178 268.3);

Tailwind

colors: {
  custom: {
    50: '#8083d6',
    500: '#3753c3',
    950: '#000000',
  },
}

SCSS

$custom: #3753c3;
$custom-light: #8083d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3753c3",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 195
  },
  "hsl": {
    "h": 228,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48889,
    "c": 0.17781,
    "h": 268.3
  },
  "luminance": 0.10939
}

Semantic roles & 50–950 ramp

primary

#3753C3

secondary

#CCBF8A

accent

#C149DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3753C3

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

Preview Lab → · Contrast checker → · Palette generator →