#6563CB#6563CB

#6563CB is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.4% C 0.157 H 280.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#6563CB
RGB	rgb(101, 99, 203)
HSL	hsl(241, 50%, 59%)
HSV	hsv(241, 51%, 80%)
CMYK	cmyk(50.2%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(46.98, 28.92, -54.00)
CIE-LCH	lch(46.98, 61.26, 298.17°)
OKLab	oklab(55.44% 0.0295 -0.154)
OKLCH	oklch(55.44% 0.157 280.8)
XYZ	xyz(20.6049, 16.0010, 58.4911)
Luminance	0.1600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6563CB #C9CB63

analogous

#6395CB #6563CB #9963CB

triadic

#6563CB #CB6563 #63CB65

tetradic

#6563CB #CB6395 #C9CB63 #63CB99

square

#6563CB #CB6395 #C9CB63 #63CB99

split-complementary

#6563CB #CB9963 #95CB63

monochromatic

#2F2D87 #3F3CB5 #6563CB #9291DA #C0BFEA

Accessibility & contrast

On white

5.00

#6563CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#6563CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6563CB

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6563CB	#FFFFFF	#000000	##FFFFFF
##6563CB	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F73CF

Deuteranopia (green-blind)

#266CC9

Tritanopia (blue-blind)

#3D7A8D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #6563cb;
/* rgb */ color: rgb(101, 99, 203);
/* oklch */ color: oklch(55.4% 0.157 280.8);

Tailwind

colors: {
  custom: {
    50: '#988fdb',
    500: '#6563cb',
    950: '#000000',
  },
}

SCSS

$custom: #6563cb;
$custom-light: #988fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#6563cb",
  "rgb": {
    "r": 101,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 241.154,
    "s": 50,
    "l": 59.216
  },
  "oklch": {
    "l": 0.55438,
    "c": 0.15677,
    "h": 280.8
  },
  "luminance": 0.16002
}

Semantic roles & 50–950 ramp

primary

#6563CB

secondary

#D8D9B1

accent

#DA4ED7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6563CB

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

Preview Lab → · Contrast checker → · Palette generator →