#643FAB#643FAB

#643FAB is a mid, vivid violet. Relative luminance 0.092; OKLCH L 46.9% C 0.165 H 295.0°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#643FAB
RGB	rgb(100, 63, 171)
HSL	hsl(261, 46%, 46%)
HSV	hsv(261, 63%, 67%)
CMYK	cmyk(41.5%, 63.2%, 0%, 32.9%)
CIE-LAB	lab(36.37, 40.68, -52.39)
CIE-LCH	lch(36.37, 66.33, 307.83°)
OKLab	oklab(46.9% 0.0698 -0.1494)
OKLCH	oklch(46.9% 0.165 295)
XYZ	xyz(14.3818, 9.2043, 39.5391)
Luminance	0.0921 (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

#643FAB #86AB3F

analogous

#3F50AB #643FAB #9A3FAB

triadic

#643FAB #AB643F #3FAB64

tetradic

#643FAB #AB3F50 #86AB3F #3FAB9A

square

#643FAB #AB3F50 #86AB3F #3FAB9A

split-complementary

#643FAB #AB9A3F #50AB3F

monochromatic

#301E52 #4A2F7E #643FAB #8462C5 #A78FD6

Accessibility & contrast

On white

7.39

#643FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#643FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FAB

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FAB	#FFFFFF	#000000	##FFFFFF
##643FAB	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#0054A9

Tritanopia (blue-blind)

#52576F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643fab;
/* rgb */ color: rgb(100, 63, 171);
/* oklch */ color: oklch(46.9% 0.165 295.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#643fab",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 171
  },
  "hsl": {
    "h": 260.556,
    "s": 46.154,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46896,
    "c": 0.16485,
    "h": 295
  },
  "luminance": 0.09205
}

Semantic roles & 50–950 ramp

primary

#643FAB

secondary

#ACC185

accent

#D652A9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643FAB

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

Preview Lab → · Contrast checker → · Palette generator →