#643A97#643A97

#643A97 is a dark, vivid violet. Relative luminance 0.080; OKLCH L 44.7% C 0.147 H 301.5°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#643A97
RGB	rgb(100, 58, 151)
HSL	hsl(267, 44%, 41%)
HSV	hsv(267, 62%, 59%)
CMYK	cmyk(33.8%, 61.6%, 0%, 40.8%)
CIE-LAB	lab(33.92, 38.10, -44.30)
CIE-LCH	lch(33.92, 58.43, 310.69°)
OKLab	oklab(44.67% 0.0769 -0.1256)
OKLCH	oklch(44.67% 0.147 301.5)
XYZ	xyz(12.3532, 7.9698, 30.1597)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A97 #6D973A

analogous

#3A3E97 #643A97 #923A97

triadic

#643A97 #97643A #3A9764

tetradic

#643A97 #973A3E #6D973A #3A9792

square

#643A97 #973A3E #6D973A #3A9792

split-complementary

#643A97 #97923A #3E973A

monochromatic

#29183F #47296B #643A97 #8252BC #A27ECD

Accessibility & contrast

On white

8.10

#643A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#643A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A97

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A97	#FFFFFF	#000000	##FFFFFF
##643A97	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024F9A

Deuteranopia (green-blind)

#1E4F95

Tritanopia (blue-blind)

#5A4D63

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #643a97;
/* rgb */ color: rgb(100, 58, 151);
/* oklch */ color: oklch(44.7% 0.147 301.5);

Tailwind

colors: {
  custom: {
    50: '#9472b6',
    500: '#643a97',
    950: '#000000',
  },
}

SCSS

$custom: #643a97;
$custom-light: #9472b6;
$custom-dark: #000000;

JSON

{
  "hex": "#643a97",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 151
  },
  "hsl": {
    "h": 267.097,
    "s": 44.498,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44665,
    "c": 0.14729,
    "h": 301.5
  },
  "luminance": 0.0797
}

Semantic roles & 50–950 ramp

primary

#643A97

secondary

#9AB776

accent

#D4549A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643A97

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

Preview Lab → · Contrast checker → · Palette generator →