#6563DB#6563DB

#6563DB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.5% C 0.179 H 279.8°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#6563DB
RGB	rgb(101, 99, 219)
HSL	hsl(241, 63%, 62%)
HSV	hsv(241, 55%, 86%)
CMYK	cmyk(53.9%, 54.8%, 0%, 14.1%)
CIE-LAB	lab(48.01, 33.90, -61.47)
CIE-LCH	lch(48.01, 70.20, 298.88°)
OKLab	oklab(56.54% 0.0303 -0.1759)
OKLCH	oklch(56.54% 0.179 279.8)
XYZ	xyz(22.6109, 16.8034, 69.0560)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6563DB #D9DB63

analogous

#639DDB #6563DB #A163DB

triadic

#6563DB #DB6563 #63DB65

tetradic

#6563DB #DB639D #D9DB63 #63DBA1

square

#6563DB #DB639D #D9DB63 #63DBA1

split-complementary

#6563DB #DBA163 #9DDB63

monochromatic

#27259F #3431D0 #6563DB #9695E6 #C7C6F2

Accessibility & contrast

On white

4.82

#6563DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#6563DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6563DB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6563DB	#FFFFFF	#000000	##FFFFFF
##6563DB	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1277DF

Deuteranopia (green-blind)

#006DD8

Tritanopia (blue-blind)

#2E7F95

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #6563db;
/* rgb */ color: rgb(101, 99, 219);
/* oklch */ color: oklch(56.5% 0.179 279.8);

Tailwind

colors: {
  custom: {
    50: '#9a8fe7',
    500: '#6563db',
    950: '#000000',
  },
}

SCSS

$custom: #6563db;
$custom-light: #9a8fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#6563db",
  "rgb": {
    "r": 101,
    "g": 99,
    "b": 219
  },
  "hsl": {
    "h": 241,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.56543,
    "c": 0.17852,
    "h": 279.8
  },
  "luminance": 0.16805
}

Semantic roles & 50–950 ramp

primary

#6563DB

secondary

#E2E3B7

accent

#CA1BC7

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #6563DB

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

Preview Lab → · Contrast checker → · Palette generator →