#643AA9#643AA9

#643AA9 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 46.0% C 0.169 H 296.5°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#643AA9
RGB	rgb(100, 58, 169)
HSL	hsl(263, 49%, 45%)
HSV	hsv(263, 66%, 66%)
CMYK	cmyk(40.8%, 65.7%, 0%, 33.7%)
CIE-LAB	lab(35.20, 42.91, -53.09)
CIE-LCH	lch(35.20, 68.26, 308.95°)
OKLab	oklab(46% 0.0756 -0.1514)
OKLCH	oklch(46% 0.169 296.5)
XYZ	xyz(13.9282, 8.5997, 38.4545)
Luminance	0.0860 (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

#643AA9 #7FA93A

analogous

#3A47A9 #643AA9 #9C3AA9

triadic

#643AA9 #A9643A #3AA964

tetradic

#643AA9 #A93A47 #7FA93A #3AA99C

square

#643AA9 #A93A47 #7FA93A #3AA99C

split-complementary

#643AA9 #A99C3A #47A93A

monochromatic

#2E1B4E #492A7B #643AA9 #835AC6 #A587D6

Accessibility & contrast

On white

7.72

#643AA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643AA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA9

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA9	#FFFFFF	#000000	##FFFFFF
##643AA9	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AC

Deuteranopia (green-blind)

#0051A7

Tritanopia (blue-blind)

#53546C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643aa9;
/* rgb */ color: rgb(100, 58, 169);
/* oklch */ color: oklch(46.0% 0.169 296.5);

Tailwind

colors: {
  custom: {
    50: '#9573c3',
    500: '#643aa9',
    950: '#000000',
  },
}

SCSS

$custom: #643aa9;
$custom-light: #9573c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa9",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 169
  },
  "hsl": {
    "h": 262.703,
    "s": 48.899,
    "l": 44.51
  },
  "oklch": {
    "l": 0.46001,
    "c": 0.16927,
    "h": 296.5
  },
  "luminance": 0.086
}

Semantic roles & 50–950 ramp

primary

#643AA9

secondary

#A7C07F

accent

#D84FA5

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643AA9

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

Preview Lab → · Contrast checker → · Palette generator →