#643CA7#643CA7

#643CA7 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.164 H 296.6°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#643CA7
RGB	rgb(100, 60, 167)
HSL	hsl(262, 47%, 45%)
HSV	hsv(262, 64%, 65%)
CMYK	cmyk(40.1%, 64.1%, 0%, 34.5%)
CIE-LAB	lab(35.46, 41.26, -51.48)
CIE-LCH	lch(35.46, 65.97, 308.72°)
OKLab	oklab(46.14% 0.0736 -0.1467)
OKLCH	oklch(46.14% 0.164 296.6)
XYZ	xyz(13.8446, 8.7308, 37.5075)
Luminance	0.0873 (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

#643CA7 #7FA73C

analogous

#3C49A7 #643CA7 #9A3CA7

triadic

#643CA7 #A7643C #3CA764

tetradic

#643CA7 #A73C49 #7FA73C #3CA79A

square

#643CA7 #A73C49 #7FA73C #3CA79A

split-complementary

#643CA7 #A79A3C #49A73C

monochromatic

#2E1C4D #492C7A #643CA7 #835CC4 #A589D5

Accessibility & contrast

On white

7.65

#643CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#643CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA7

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA7	#FFFFFF	#000000	##FFFFFF
##643CA7	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AA

Deuteranopia (green-blind)

#0052A5

Tritanopia (blue-blind)

#53546C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ca7;
/* rgb */ color: rgb(100, 60, 167);
/* oklch */ color: oklch(46.1% 0.164 296.6);

Tailwind

colors: {
  custom: {
    50: '#9574c2',
    500: '#643ca7',
    950: '#000000',
  },
}

SCSS

$custom: #643ca7;
$custom-light: #9574c2;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca7",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 167
  },
  "hsl": {
    "h": 262.43,
    "s": 47.137,
    "l": 44.51
  },
  "oklch": {
    "l": 0.46142,
    "c": 0.16409,
    "h": 296.6
  },
  "luminance": 0.08731
}

Semantic roles & 50–950 ramp

primary

#643CA7

secondary

#A7BF80

accent

#D751A5

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA7

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

Preview Lab → · Contrast checker → · Palette generator →