#3566BF#3566BF

#3566BF is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.4% C 0.150 H 261.2°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#3566BF
RGB	rgb(53, 102, 191)
HSL	hsl(219, 57%, 48%)
HSV	hsv(219, 72%, 75%)
CMYK	cmyk(72.3%, 46.6%, 0%, 25.1%)
CIE-LAB	lab(44.26, 14.13, -51.59)
CIE-LCH	lch(44.26, 53.49, 285.32°)
OKLab	oklab(52.41% -0.0229 -0.1479)
OKLCH	oklch(52.41% 0.15 261.2)
XYZ	xyz(15.6202, 14.0195, 51.1629)
Luminance	0.1402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566BF #BF8E35

analogous

#35ABBF #3566BF #4935BF

triadic

#3566BF #BF3566 #66BF35

tetradic

#3566BF #BF35AB #BF8E35 #35BF49

square

#3566BF #BF35AB #BF8E35 #35BF49

split-complementary

#3566BF #BF4935 #ABBF35

monochromatic

#1A335F #284C8F #3566BF #5F88D3 #8FABE0

Accessibility & contrast

On white

5.52

#3566BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#3566BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566BF

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566BF	#FFFFFF	#000000	##FFFFFF
##3566BF	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376FC2

Deuteranopia (green-blind)

#1763BD

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3566bf;
/* rgb */ color: rgb(53, 102, 191);
/* oklch */ color: oklch(52.4% 0.150 261.2);

Tailwind

colors: {
  custom: {
    50: '#7e91d3',
    500: '#3566bf',
    950: '#000000',
  },
}

SCSS

$custom: #3566bf;
$custom-light: #7e91d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3566bf",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 191
  },
  "hsl": {
    "h": 218.696,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52408,
    "c": 0.14965,
    "h": 261.2
  },
  "luminance": 0.14021
}

Semantic roles & 50–950 ramp

primary

#3566BF

secondary

#CAB285

accent

#AA48E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3566BF

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

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