#3763D3#3763D3

#3763D3 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.3% C 0.180 H 264.8°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3763D3
RGB	rgb(55, 99, 211)
HSL	hsl(223, 64%, 52%)
HSV	hsv(223, 74%, 83%)
CMYK	cmyk(73.9%, 53.1%, 0%, 17.3%)
CIE-LAB	lab(44.85, 23.72, -62.15)
CIE-LCH	lch(44.85, 66.52, 290.89°)
OKLab	oklab(53.31% -0.0164 -0.179)
OKLCH	oklch(53.31% 0.18 264.8)
XYZ	xyz(17.7911, 14.4371, 63.4644)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763D3 #D3A737

analogous

#37B1D3 #3763D3 #5937D3

triadic

#3763D3 #D33763 #63D337

tetradic

#3763D3 #D337B1 #D3A737 #37D359

square

#3763D3 #D337B1 #D3A737 #37D359

split-complementary

#3763D3 #D35937 #B1D337

monochromatic

#1A3476 #254AA8 #3763D3 #698ADE #9BB1E9

Accessibility & contrast

On white

5.40

#3763D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3763D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763D3

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763D3	#FFFFFF	#000000	##FFFFFF
##3763D3	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C72D7

Deuteranopia (green-blind)

#0063D1

Tritanopia (blue-blind)

#007E91

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3763d3;
/* rgb */ color: rgb(55, 99, 211);
/* oklch */ color: oklch(53.3% 0.180 264.8);

Tailwind

colors: {
  custom: {
    50: '#838ee1',
    500: '#3763d3',
    950: '#000000',
  },
}

SCSS

$custom: #3763d3;
$custom-light: #838ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3763d3",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 211
  },
  "hsl": {
    "h": 223.077,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.53308,
    "c": 0.17972,
    "h": 264.8
  },
  "luminance": 0.14439
}

Semantic roles & 50–950 ramp

primary

#3763D3

secondary

#D5C291

accent

#B841E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3763D3

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

Preview Lab → · Contrast checker → · Palette generator →