#3763C4#3763C4

#3763C4 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.2% C 0.159 H 263.5°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3763C4
RGB	rgb(55, 99, 196)
HSL	hsl(221, 56%, 49%)
HSV	hsv(221, 72%, 77%)
CMYK	cmyk(71.9%, 49.5%, 0%, 23.1%)
CIE-LAB	lab(43.83, 18.18, -55.18)
CIE-LCH	lch(43.83, 58.10, 288.24°)
OKLab	oklab(52.2% -0.018 -0.1585)
OKLCH	oklch(52.2% 0.159 263.5)
XYZ	xyz(15.9977, 13.7197, 54.0189)
Luminance	0.1372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763C4 #C49837

analogous

#37A9C4 #3763C4 #5237C4

triadic

#3763C4 #C43763 #63C437

tetradic

#3763C4 #C437A9 #C49837 #37C452

square

#3763C4 #C437A9 #C49837 #37C452

split-complementary

#3763C4 #C45237 #A9C437

monochromatic

#1C3364 #2A4B94 #3763C4 #6587D4 #94ACE1

Accessibility & contrast

On white

5.61

#3763C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3763C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763C4

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763C4	#FFFFFF	#000000	##FFFFFF
##3763C4	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B6EC8

Deuteranopia (green-blind)

#0061C2

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3763c4;
/* rgb */ color: rgb(55, 99, 196);
/* oklch */ color: oklch(52.2% 0.159 263.5);

Tailwind

colors: {
  custom: {
    50: '#808ed6',
    500: '#3763c4',
    950: '#000000',
  },
}

SCSS

$custom: #3763c4;
$custom-light: #808ed6;
$custom-dark: #000000;

JSON

{
  "hex": "#3763c4",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 196
  },
  "hsl": {
    "h": 221.277,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.52202,
    "c": 0.15948,
    "h": 263.5
  },
  "luminance": 0.13721
}

Semantic roles & 50–950 ramp

primary

#3763C4

secondary

#CCB88B

accent

#B048DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3763C4

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

Preview Lab → · Contrast checker → · Palette generator →