#643FAC#643FAC

#643FAC is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.0% C 0.166 H 294.8°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#643FAC
RGB	rgb(100, 63, 172)
HSL	hsl(260, 46%, 46%)
HSV	hsv(260, 63%, 67%)
CMYK	cmyk(41.9%, 63.4%, 0%, 32.5%)
CIE-LAB	lab(36.45, 40.96, -52.86)
CIE-LCH	lch(36.45, 66.88, 307.77°)
OKLab	oklab(46.97% 0.0697 -0.1508)
OKLCH	oklch(46.97% 0.166 294.8)
XYZ	xyz(14.4775, 9.2426, 40.0429)
Luminance	0.0924 (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

#643FAC #87AC3F

analogous

#3F50AC #643FAC #9A3FAC

triadic

#643FAC #AC643F #3FAC64

tetradic

#643FAC #AC3F50 #87AC3F #3FAC9A

square

#643FAC #AC3F50 #87AC3F #3FAC9A

split-complementary

#643FAC #AC9A3F #50AC3F

monochromatic

#301E52 #4A2F7F #643FAC #8463C6 #A78FD6

Accessibility & contrast

On white

7.37

#643FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#643FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FAC

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FAC	#FFFFFF	#000000	##FFFFFF
##643FAC	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AF

Deuteranopia (green-blind)

#0054AA

Tritanopia (blue-blind)

#51586F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643fac;
/* rgb */ color: rgb(100, 63, 172);
/* oklch */ color: oklch(47.0% 0.166 294.8);

Tailwind

colors: {
  custom: {
    50: '#9576c5',
    500: '#643fac',
    950: '#000000',
  },
}

SCSS

$custom: #643fac;
$custom-light: #9576c5;
$custom-dark: #000000;

JSON

{
  "hex": "#643fac",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 172
  },
  "hsl": {
    "h": 260.367,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46972,
    "c": 0.1661,
    "h": 294.8
  },
  "luminance": 0.09243
}

Semantic roles & 50–950 ramp

primary

#643FAC

secondary

#ADC186

accent

#D652A9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643FAC

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

Preview Lab → · Contrast checker → · Palette generator →