#6563BB#6563BB

#6563BB is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.4% C 0.134 H 282.0°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#6563BB
RGB	rgb(101, 99, 187)
HSL	hsl(241, 39%, 56%)
HSV	hsv(241, 47%, 73%)
CMYK	cmyk(46%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(46.01, 24.01, -46.31)
CIE-LCH	lch(46.01, 52.16, 297.41°)
OKLab	oklab(54.4% 0.0279 -0.1314)
OKLCH	oklch(54.4% 0.134 282)
XYZ	xyz(18.7956, 15.2773, 48.9625)
Luminance	0.1528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6563BB #B9BB63

analogous

#638DBB #6563BB #9163BB

triadic

#6563BB #BB6563 #63BB65

tetradic

#6563BB #BB638D #B9BB63 #63BB91

square

#6563BB #BB638D #B9BB63 #63BB91

split-complementary

#6563BB #BB9163 #8DBB63

monochromatic

#333272 #46449D #6563BB #8F8ECE #B9B8E0

Accessibility & contrast

On white

5.18

#6563BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#6563BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6563BB

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6563BB	#FFFFFF	#000000	##FFFFFF
##6563BB	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F70BE

Deuteranopia (green-blind)

#3A6AB9

Tritanopia (blue-blind)

#487586

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #6563bb;
/* rgb */ color: rgb(101, 99, 187);
/* oklch */ color: oklch(54.4% 0.134 282.0);

Tailwind

colors: {
  custom: {
    50: '#968fd0',
    500: '#6563bb',
    950: '#000000',
  },
}

SCSS

$custom: #6563bb;
$custom-light: #968fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#6563bb",
  "rgb": {
    "r": 101,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 241.364,
    "s": 39.286,
    "l": 56.078
  },
  "oklch": {
    "l": 0.54401,
    "c": 0.13431,
    "h": 282
  },
  "luminance": 0.15278
}

Semantic roles & 50–950 ramp

primary

#6563BB

secondary

#CECFAB

accent

#CF59CC

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #6563BB

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

Preview Lab → · Contrast checker → · Palette generator →