#3563CD#3563CD

#3563CD is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.8% C 0.172 H 263.8°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3563CD
RGB	rgb(53, 99, 205)
HSL	hsl(222, 60%, 51%)
HSV	hsv(222, 74%, 80%)
CMYK	cmyk(74.1%, 51.7%, 0%, 19.6%)
CIE-LAB	lab(44.36, 21.25, -59.51)
CIE-LCH	lch(44.36, 63.20, 289.65°)
OKLab	oklab(52.78% -0.0185 -0.1713)
OKLCH	oklch(52.78% 0.172 263.8)
XYZ	xyz(16.9456, 14.0865, 59.5717)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563CD #CD9F35

analogous

#35AFCD #3563CD #5335CD

triadic

#3563CD #CD3563 #63CD35

tetradic

#3563CD #CD35AF #CD9F35 #35CD53

square

#3563CD #CD35AF #CD9F35 #35CD53

split-complementary

#3563CD #CD5335 #AFCD35

monochromatic

#1B346D #274B9E #3563CD #6689D9 #97AFE5

Accessibility & contrast

On white

5.50

#3563CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3563CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563CD

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563CD	#FFFFFF	#000000	##FFFFFF
##3563CD	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C70D1

Deuteranopia (green-blind)

#0062CB

Tritanopia (blue-blind)

#007D8E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3563cd;
/* rgb */ color: rgb(53, 99, 205);
/* oklch */ color: oklch(52.8% 0.172 263.8);

Tailwind

colors: {
  custom: {
    50: '#818edd',
    500: '#3563cd',
    950: '#000000',
  },
}

SCSS

$custom: #3563cd;
$custom-light: #818edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3563cd",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 205
  },
  "hsl": {
    "h": 221.842,
    "s": 60.317,
    "l": 50.588
  },
  "oklch": {
    "l": 0.52777,
    "c": 0.17226,
    "h": 263.8
  },
  "luminance": 0.14088
}

Semantic roles & 50–950 ramp

primary

#3563CD

secondary

#D1BC8D

accent

#B344E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3563CD

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

Preview Lab → · Contrast checker → · Palette generator →