#3566BD#3566BD

#3566BD is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.3% C 0.147 H 260.9°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3566BD
RGB	rgb(53, 102, 189)
HSL	hsl(218, 56%, 47%)
HSV	hsv(218, 72%, 74%)
CMYK	cmyk(72%, 46%, 0%, 25.9%)
CIE-LAB	lab(44.14, 13.39, -50.63)
CIE-LCH	lch(44.14, 52.37, 284.81°)
OKLab	oklab(52.27% -0.0232 -0.1451)
OKLCH	oklch(52.27% 0.147 260.9)
XYZ	xyz(15.4016, 13.9321, 50.0117)
Luminance	0.1393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566BD #BD8C35

analogous

#35AABD #3566BD #4835BD

triadic

#3566BD #BD3566 #66BD35

tetradic

#3566BD #BD35AA #BD8C35 #35BD48

square

#3566BD #BD35AA #BD8C35 #35BD48

split-complementary

#3566BD #BD4835 #AABD35

monochromatic

#1A325D #284C8D #3566BD #5D87D2 #8DABDF

Accessibility & contrast

On white

5.55

#3566BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3566BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566BD

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566BD	#FFFFFF	#000000	##FFFFFF
##3566BD	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396FC0

Deuteranopia (green-blind)

#1C63BB

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3566bd;
/* rgb */ color: rgb(53, 102, 189);
/* oklch */ color: oklch(52.3% 0.147 260.9);

Tailwind

colors: {
  custom: {
    50: '#7d91d1',
    500: '#3566bd',
    950: '#000000',
  },
}

SCSS

$custom: #3566bd;
$custom-light: #7d91d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3566bd",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 218.382,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.52271,
    "c": 0.14692,
    "h": 260.9
  },
  "luminance": 0.13934
}

Semantic roles & 50–950 ramp

primary

#3566BD

secondary

#CAB184

accent

#A948DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3566BD

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

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