#643CA8#643CA8

#643CA8 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.2% C 0.165 H 296.4°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#643CA8
RGB	rgb(100, 60, 168)
HSL	hsl(262, 47%, 45%)
HSV	hsv(262, 64%, 66%)
CMYK	cmyk(40.5%, 64.3%, 0%, 34.1%)
CIE-LAB	lab(35.53, 41.54, -51.96)
CIE-LCH	lch(35.53, 66.52, 308.64°)
OKLab	oklab(46.22% 0.0735 -0.1481)
OKLCH	oklch(46.22% 0.165 296.4)
XYZ	xyz(13.9374, 8.7679, 37.9963)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CA8 #80A83C

analogous

#3C4AA8 #643CA8 #9A3CA8

triadic

#643CA8 #A8643C #3CA864

tetradic

#643CA8 #A83C4A #80A83C #3CA89A

square

#643CA8 #A83C4A #80A83C #3CA89A

split-complementary

#643CA8 #A89A3C #4AA83C

monochromatic

#2E1C4E #492C7B #643CA8 #835CC5 #A589D5

Accessibility & contrast

On white

7.63

#643CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#643CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA8

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA8	#FFFFFF	#000000	##FFFFFF
##643CA8	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0052A6

Tritanopia (blue-blind)

#53556C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ca8;
/* rgb */ color: rgb(100, 60, 168);
/* oklch */ color: oklch(46.2% 0.165 296.4);

Tailwind

colors: {
  custom: {
    50: '#9574c3',
    500: '#643ca8',
    950: '#000000',
  },
}

SCSS

$custom: #643ca8;
$custom-light: #9574c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca8",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 168
  },
  "hsl": {
    "h": 262.222,
    "s": 47.368,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46217,
    "c": 0.16531,
    "h": 296.4
  },
  "luminance": 0.08768
}

Semantic roles & 50–950 ramp

primary

#643CA8

secondary

#A8BF80

accent

#D751A5

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA8

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

Preview Lab → · Contrast checker → · Palette generator →