#643AA1#643AA1

#643AA1 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.4% C 0.160 H 298.6°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#643AA1
RGB	rgb(100, 58, 161)
HSL	hsl(264, 47%, 43%)
HSV	hsv(264, 64%, 63%)
CMYK	cmyk(37.9%, 64%, 0%, 36.9%)
CIE-LAB	lab(34.62, 40.75, -49.23)
CIE-LCH	lch(34.62, 63.91, 309.61°)
OKLab	oklab(45.39% 0.0764 -0.1401)
OKLCH	oklch(45.39% 0.16 298.6)
XYZ	xyz(13.2000, 8.3085, 34.6196)
Luminance	0.0831 (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

#643AA1 #77A13A

analogous

#3A43A1 #643AA1 #973AA1

triadic

#643AA1 #A1643A #3AA164

tetradic

#643AA1 #A13A43 #77A13A #3AA197

square

#643AA1 #A13A43 #77A13A #3AA197

split-complementary

#643AA1 #A1973A #43A13A

monochromatic

#2C1A47 #482A74 #643AA1 #8256C2 #A383D2

Accessibility & contrast

On white

7.89

#643AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#643AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA1

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA1	#FFFFFF	#000000	##FFFFFF
##643AA1	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A4

Deuteranopia (green-blind)

#07509F

Tritanopia (blue-blind)

#565168

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643aa1;
/* rgb */ color: rgb(100, 58, 161);
/* oklch */ color: oklch(45.4% 0.160 298.6);

Tailwind

colors: {
  custom: {
    50: '#9572bd',
    500: '#643aa1',
    950: '#000000',
  },
}

SCSS

$custom: #643aa1;
$custom-light: #9572bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa1",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 264.466,
    "s": 47.032,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45393,
    "c": 0.15956,
    "h": 298.6
  },
  "luminance": 0.08309
}

Semantic roles & 50–950 ramp

primary

#643AA1

secondary

#A1BC7B

accent

#D751A0

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643AA1

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

Preview Lab → · Contrast checker → · Palette generator →