#3566D4#3566D4

#3566D4 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.9% C 0.178 H 263.5°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3566D4
RGB	rgb(53, 102, 212)
HSL	hsl(222, 65%, 52%)
HSV	hsv(222, 75%, 83%)
CMYK	cmyk(75%, 51.9%, 0%, 16.9%)
CIE-LAB	lab(45.65, 21.93, -61.43)
CIE-LCH	lch(45.65, 65.23, 289.64°)
OKLab	oklab(53.91% -0.0201 -0.1768)
OKLCH	oklch(53.91% 0.178 263.5)
XYZ	xyz(18.0990, 15.0111, 64.2181)
Luminance	0.1501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566D4 #D4A335

analogous

#35B6D4 #3566D4 #5335D4

triadic

#3566D4 #D43566 #66D435

tetradic

#3566D4 #D435B6 #D4A335 #35D453

square

#3566D4 #D435B6 #D4A335 #35D453

split-complementary

#3566D4 #D45335 #B6D435

monochromatic

#193676 #244DA8 #3566D4 #678CDF #9AB2E9

Accessibility & contrast

On white

5.25

#3566D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#3566D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566D4

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566D4	#FFFFFF	#000000	##FFFFFF
##3566D4	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A74D8

Deuteranopia (green-blind)

#0065D2

Tritanopia (blue-blind)

#008193

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3566d4;
/* rgb */ color: rgb(53, 102, 212);
/* oklch */ color: oklch(53.9% 0.178 263.5);

Tailwind

colors: {
  custom: {
    50: '#8291e2',
    500: '#3566d4',
    950: '#000000',
  },
}

SCSS

$custom: #3566d4;
$custom-light: #8291e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3566d4",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 212
  },
  "hsl": {
    "h": 221.509,
    "s": 64.898,
    "l": 51.961
  },
  "oklch": {
    "l": 0.53913,
    "c": 0.17799,
    "h": 263.5
  },
  "luminance": 0.15013
}

Semantic roles & 50–950 ramp

primary

#3566D4

secondary

#D5C090

accent

#B440E8

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3566D4

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

Preview Lab → · Contrast checker → · Palette generator →