#3566D2#3566D2

#3566D2 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.8% C 0.175 H 263.3°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3566D2
RGB	rgb(53, 102, 210)
HSL	hsl(221, 64%, 52%)
HSV	hsv(221, 75%, 82%)
CMYK	cmyk(74.8%, 51.4%, 0%, 17.6%)
CIE-LAB	lab(45.51, 21.19, -60.51)
CIE-LCH	lch(45.51, 64.11, 289.30°)
OKLab	oklab(53.76% -0.0203 -0.1741)
OKLCH	oklch(53.76% 0.175 263.3)
XYZ	xyz(17.8483, 14.9108, 62.8977)
Luminance	0.1491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566D2 #D2A135

analogous

#35B5D2 #3566D2 #5335D2

triadic

#3566D2 #D23566 #66D235

tetradic

#3566D2 #D235B5 #D2A135 #35D253

square

#3566D2 #D235B5 #D2A135 #35D253

split-complementary

#3566D2 #D25335 #B5D235

monochromatic

#1A3673 #254DA5 #3566D2 #678CDD #99B2E8

Accessibility & contrast

On white

5.27

#3566D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3566D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566D2

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566D2	#FFFFFF	#000000	##FFFFFF
##3566D2	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E73D6

Deuteranopia (green-blind)

#0065D0

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3566d2;
/* rgb */ color: rgb(53, 102, 210);
/* oklch */ color: oklch(53.8% 0.175 263.3);

Tailwind

colors: {
  custom: {
    50: '#8291e0',
    500: '#3566d2',
    950: '#000000',
  },
}

SCSS

$custom: #3566d2;
$custom-light: #8291e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3566d2",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 210
  },
  "hsl": {
    "h": 221.274,
    "s": 63.563,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53764,
    "c": 0.17533,
    "h": 263.3
  },
  "luminance": 0.14913
}

Semantic roles & 50–950 ramp

primary

#3566D2

secondary

#D4BE8F

accent

#B341E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3566D2

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

Preview Lab → · Contrast checker → · Palette generator →