#6563DD#6563DD

#6563DD is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.7% C 0.181 H 279.6°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#6563DD
RGB	rgb(101, 99, 221)
HSL	hsl(241, 64%, 63%)
HSV	hsv(241, 55%, 87%)
CMYK	cmyk(54.3%, 55.2%, 0%, 13.3%)
CIE-LAB	lab(48.15, 34.53, -62.39)
CIE-LCH	lch(48.15, 71.30, 298.96°)
OKLab	oklab(56.68% 0.0304 -0.1786)
OKLCH	oklch(56.68% 0.181 279.6)
XYZ	xyz(22.8757, 16.9094, 70.4510)
Luminance	0.1691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6563DD #DBDD63

analogous

#639EDD #6563DD #A263DD

triadic

#6563DD #DD6563 #63DD65

tetradic

#6563DD #DD639E #DBDD63 #63DDA2

square

#6563DD #DD639E #DBDD63 #63DDA2

split-complementary

#6563DD #DDA263 #9EDD63

monochromatic

#2523A2 #3331D2 #6563DD #9795E8 #C8C7F3

Accessibility & contrast

On white

4.79

#6563DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#6563DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6563DD

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6563DD	#FFFFFF	#000000	##FFFFFF
##6563DD	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A77E1

Deuteranopia (green-blind)

#006EDA

Tritanopia (blue-blind)

#2B7F96

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #6563dd;
/* rgb */ color: rgb(101, 99, 221);
/* oklch */ color: oklch(56.7% 0.181 279.6);

Tailwind

colors: {
  custom: {
    50: '#9a8fe8',
    500: '#6563dd',
    950: '#000000',
  },
}

SCSS

$custom: #6563dd;
$custom-light: #9a8fe8;
$custom-dark: #000000;

JSON

{
  "hex": "#6563dd",
  "rgb": {
    "r": 101,
    "g": 99,
    "b": 221
  },
  "hsl": {
    "h": 240.984,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.56685,
    "c": 0.18119,
    "h": 279.6
  },
  "luminance": 0.16911
}

Semantic roles & 50–950 ramp

primary

#6563DD

secondary

#E3E4B8

accent

#CC19C9

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #6563DD

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

Preview Lab → · Contrast checker → · Palette generator →