#3763C1#3763C1

#3763C1 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.0% C 0.155 H 263.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3763C1
RGB	rgb(55, 99, 193)
HSL	hsl(221, 56%, 49%)
HSV	hsv(221, 72%, 76%)
CMYK	cmyk(71.5%, 48.7%, 0%, 24.3%)
CIE-LAB	lab(43.63, 17.07, -53.76)
CIE-LCH	lch(43.63, 56.40, 287.62°)
OKLab	oklab(51.99% -0.0184 -0.1543)
OKLCH	oklch(51.99% 0.155 263.2)
XYZ	xyz(15.6596, 13.5845, 52.2385)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763C1 #C19537

analogous

#37A8C1 #3763C1 #5037C1

triadic

#3763C1 #C13763 #63C137

tetradic

#3763C1 #C137A8 #C19537 #37C150

square

#3763C1 #C137A8 #C19537 #37C150

split-complementary

#3763C1 #C15037 #A8C137

monochromatic

#1C3262 #294B91 #3763C1 #6386D2 #92ABE0

Accessibility & contrast

On white

5.65

#3763C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3763C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763C1

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763C1	#FFFFFF	#000000	##FFFFFF
##3763C1	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6EC4

Deuteranopia (green-blind)

#0061BF

Tritanopia (blue-blind)

#007989

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3763c1;
/* rgb */ color: rgb(55, 99, 193);
/* oklch */ color: oklch(52.0% 0.155 263.2);

Tailwind

colors: {
  custom: {
    50: '#7f8ed4',
    500: '#3763c1',
    950: '#000000',
  },
}

SCSS

$custom: #3763c1;
$custom-light: #7f8ed4;
$custom-dark: #000000;

JSON

{
  "hex": "#3763c1",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 193
  },
  "hsl": {
    "h": 220.87,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.51989,
    "c": 0.15538,
    "h": 263.2
  },
  "luminance": 0.13586
}

Semantic roles & 50–950 ramp

primary

#3763C1

secondary

#CBB689

accent

#AF49DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3763C1

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

Preview Lab → · Contrast checker → · Palette generator →