#3563CC#3563CC

#3563CC is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.7% C 0.171 H 263.7°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3563CC
RGB	rgb(53, 99, 204)
HSL	hsl(222, 60%, 50%)
HSV	hsv(222, 74%, 80%)
CMYK	cmyk(74%, 51.5%, 0%, 20%)
CIE-LAB	lab(44.29, 20.88, -59.05)
CIE-LCH	lch(44.29, 62.63, 289.48°)
OKLab	oklab(52.7% -0.0186 -0.1699)
OKLCH	oklch(52.7% 0.171 263.7)
XYZ	xyz(16.8253, 14.0384, 58.9380)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563CC #CC9E35

analogous

#35AECC #3563CC #5235CC

triadic

#3563CC #CC3563 #63CC35

tetradic

#3563CC #CC35AE #CC9E35 #35CC52

square

#3563CC #CC35AE #CC9E35 #35CC52

split-complementary

#3563CC #CC5235 #AECC35

monochromatic

#1B346B #274B9C #3563CC #6689D8 #97AEE5

Accessibility & contrast

On white

5.51

#3563CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3563CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563CC

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563CC	#FFFFFF	#000000	##FFFFFF
##3563CC	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E70D0

Deuteranopia (green-blind)

#0062CA

Tritanopia (blue-blind)

#007C8E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3563cc;
/* rgb */ color: rgb(53, 99, 204);
/* oklch */ color: oklch(52.7% 0.171 263.7);

Tailwind

colors: {
  custom: {
    50: '#808edc',
    500: '#3563cc',
    950: '#000000',
  },
}

SCSS

$custom: #3563cc;
$custom-light: #808edc;
$custom-dark: #000000;

JSON

{
  "hex": "#3563cc",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 204
  },
  "hsl": {
    "h": 221.722,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52703,
    "c": 0.17091,
    "h": 263.7
  },
  "luminance": 0.1404
}

Semantic roles & 50–950 ramp

primary

#3563CC

secondary

#D0BC8D

accent

#B345E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3563CC

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

Preview Lab → · Contrast checker → · Palette generator →