#3768BD#3768BD

#3768BD is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.8% C 0.144 H 260.6°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3768BD
RGB	rgb(55, 104, 189)
HSL	hsl(218, 55%, 48%)
HSV	hsv(218, 71%, 74%)
CMYK	cmyk(70.9%, 45%, 0%, 25.9%)
CIE-LAB	lab(44.78, 12.40, -49.59)
CIE-LCH	lch(44.78, 51.12, 284.04°)
OKLab	oklab(52.79% -0.0235 -0.1419)
OKLCH	oklch(52.79% 0.144 260.6)
XYZ	xyz(15.7079, 14.3853, 50.0831)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3768BD #BD8C37

analogous

#37ABBD #3768BD #4937BD

triadic

#3768BD #BD3768 #68BD37

tetradic

#3768BD #BD37AB #BD8C37 #37BD49

square

#3768BD #BD37AB #BD8C37 #37BD49

split-complementary

#3768BD #BD4937 #ABBD37

monochromatic

#1B345E #294E8E #3768BD #6089D1 #90ADDF

Accessibility & contrast

On white

5.42

#3768BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3768BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3768BD

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3768BD	#FFFFFF	#000000	##FFFFFF
##3768BD	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D71C0

Deuteranopia (green-blind)

#2364BB

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3768bd;
/* rgb */ color: rgb(55, 104, 189);
/* oklch */ color: oklch(52.8% 0.144 260.6);

Tailwind

colors: {
  custom: {
    50: '#7e92d1',
    500: '#3768bd',
    950: '#000000',
  },
}

SCSS

$custom: #3768bd;
$custom-light: #7e92d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3768bd",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 189
  },
  "hsl": {
    "h": 218.06,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.5279,
    "c": 0.14388,
    "h": 260.6
  },
  "luminance": 0.14387
}

Semantic roles & 50–950 ramp

primary

#3768BD

secondary

#C9B186

accent

#A84ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3768BD

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

Preview Lab → · Contrast checker → · Palette generator →