#3563BF#3563BF

#3563BF is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.8% C 0.153 H 262.4°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3563BF
RGB	rgb(53, 99, 191)
HSL	hsl(220, 57%, 48%)
HSV	hsv(220, 72%, 75%)
CMYK	cmyk(72.3%, 48.2%, 0%, 25.1%)
CIE-LAB	lab(43.42, 16.05, -52.94)
CIE-LCH	lch(43.42, 55.32, 286.87°)
OKLab	oklab(51.76% -0.0203 -0.1519)
OKLCH	oklch(51.76% 0.153 262.4)
XYZ	xyz(15.3307, 13.4405, 51.0664)
Luminance	0.1344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563BF #BF9135

analogous

#35A8BF #3563BF #4C35BF

triadic

#3563BF #BF3563 #63BF35

tetradic

#3563BF #BF35A8 #BF9135 #35BF4C

square

#3563BF #BF35A8 #BF9135 #35BF4C

split-complementary

#3563BF #BF4C35 #A8BF35

monochromatic

#1A315F #284A8F #3563BF #5F85D3 #8FAAE0

Accessibility & contrast

On white

5.69

#3563BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3563BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563BF

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563BF	#FFFFFF	#000000	##FFFFFF
##3563BF	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306DC2

Deuteranopia (green-blind)

#0661BD

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3563bf;
/* rgb */ color: rgb(53, 99, 191);
/* oklch */ color: oklch(51.8% 0.153 262.4);

Tailwind

colors: {
  custom: {
    50: '#7e8ed3',
    500: '#3563bf',
    950: '#000000',
  },
}

SCSS

$custom: #3563bf;
$custom-light: #7e8ed3;
$custom-dark: #000000;

JSON

{
  "hex": "#3563bf",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 191
  },
  "hsl": {
    "h": 220,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51763,
    "c": 0.15327,
    "h": 262.4
  },
  "luminance": 0.13442
}

Semantic roles & 50–950 ramp

primary

#3563BF

secondary

#CAB385

accent

#AD48E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3563BF

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

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