#3763BD#3763BD

#3763BD is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.7% C 0.150 H 262.7°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3763BD
RGB	rgb(55, 99, 189)
HSL	hsl(220, 55%, 48%)
HSV	hsv(220, 71%, 74%)
CMYK	cmyk(70.9%, 47.6%, 0%, 25.9%)
CIE-LAB	lab(43.37, 15.60, -51.85)
CIE-LCH	lch(43.37, 54.15, 286.74°)
OKLab	oklab(51.71% -0.019 -0.1487)
OKLCH	oklch(51.71% 0.15 262.7)
XYZ	xyz(15.2194, 13.4084, 49.9202)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763BD #BD9137

analogous

#37A6BD #3763BD #4E37BD

triadic

#3763BD #BD3763 #63BD37

tetradic

#3763BD #BD37A6 #BD9137 #37BD4E

square

#3763BD #BD37A6 #BD9137 #37BD4E

split-complementary

#3763BD #BD4E37 #A6BD37

monochromatic

#1B315E #294A8E #3763BD #6085D1 #90AADF

Accessibility & contrast

On white

5.70

#3763BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3763BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763BD

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763BD	#FFFFFF	#000000	##FFFFFF
##3763BD	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336DC0

Deuteranopia (green-blind)

#1161BB

Tritanopia (blue-blind)

#007887

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3763bd;
/* rgb */ color: rgb(55, 99, 189);
/* oklch */ color: oklch(51.7% 0.150 262.7);

Tailwind

colors: {
  custom: {
    50: '#7e8ed1',
    500: '#3763bd',
    950: '#000000',
  },
}

SCSS

$custom: #3763bd;
$custom-light: #7e8ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3763bd",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 189
  },
  "hsl": {
    "h": 220.299,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51708,
    "c": 0.14989,
    "h": 262.7
  },
  "luminance": 0.1341
}

Semantic roles & 50–950 ramp

primary

#3763BD

secondary

#C9B386

accent

#AD4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3763BD

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

Preview Lab → · Contrast checker → · Palette generator →