#3563B5#3563B5

#3563B5 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.1% C 0.140 H 261.0°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3563B5
RGB	rgb(53, 99, 181)
HSL	hsl(218, 55%, 46%)
HSV	hsv(218, 71%, 71%)
CMYK	cmyk(70.7%, 45.3%, 0%, 29%)
CIE-LAB	lab(42.79, 12.34, -48.13)
CIE-LCH	lch(42.79, 49.69, 284.38°)
OKLab	oklab(51.07% -0.0219 -0.1378)
OKLCH	oklch(51.07% 0.14 261)
XYZ	xyz(14.2675, 13.0153, 45.4674)
Luminance	0.1302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563B5 #B58735

analogous

#35A3B5 #3563B5 #4735B5

triadic

#3563B5 #B53563 #63B535

tetradic

#3563B5 #B535A3 #B58735 #35B547

square

#3563B5 #B535A3 #B58735 #35B547

split-complementary

#3563B5 #B54735 #A3B535

monochromatic

#192F56 #274986 #3563B5 #5983CE #88A6DC

Accessibility & contrast

On white

5.83

#3563B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3563B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563B5

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563B5	#FFFFFF	#000000	##FFFFFF
##3563B5	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6BB8

Deuteranopia (green-blind)

#2160B3

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3563b5;
/* rgb */ color: rgb(53, 99, 181);
/* oklch */ color: oklch(51.1% 0.140 261.0);

Tailwind

colors: {
  custom: {
    50: '#7c8ecc',
    500: '#3563b5',
    950: '#000000',
  },
}

SCSS

$custom: #3563b5;
$custom-light: #7c8ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3563b5",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 181
  },
  "hsl": {
    "h": 218.438,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.51073,
    "c": 0.1395,
    "h": 261
  },
  "luminance": 0.13017
}

Semantic roles & 50–950 ramp

primary

#3563B5

secondary

#C6AD80

accent

#A94ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3563B5

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

Preview Lab → · Contrast checker → · Palette generator →