#643CAD#643CAD

#643CAD is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.6% C 0.171 H 295.2°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#643CAD
RGB	rgb(100, 60, 173)
HSL	hsl(261, 48%, 46%)
HSV	hsv(261, 65%, 68%)
CMYK	cmyk(42.2%, 65.3%, 0%, 32.2%)
CIE-LAB	lab(35.90, 42.91, -54.34)
CIE-LCH	lch(35.90, 69.24, 308.29°)
OKLab	oklab(46.6% 0.073 -0.1551)
OKLCH	oklch(46.6% 0.171 295.2)
XYZ	xyz(14.4122, 8.9578, 40.4968)
Luminance	0.0896 (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

#643CAD #85AD3C

analogous

#3C4CAD #643CAD #9C3CAD

triadic

#643CAD #AD643C #3CAD64

tetradic

#643CAD #AD3C4C #85AD3C #3CAD9C

square

#643CAD #AD3C4C #85AD3C #3CAD9C

split-complementary

#643CAD #AD9C3C #4CAD3C

monochromatic

#2F1C52 #4A2C80 #643CAD #845FC7 #A78CD7

Accessibility & contrast

On white

7.52

#643CAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#643CAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CAD

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CAD	#FFFFFF	#000000	##FFFFFF
##643CAD	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B1

Deuteranopia (green-blind)

#0053AB

Tritanopia (blue-blind)

#51566F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643cad;
/* rgb */ color: rgb(100, 60, 173);
/* oklch */ color: oklch(46.6% 0.171 295.2);

Tailwind

colors: {
  custom: {
    50: '#9674c6',
    500: '#643cad',
    950: '#000000',
  },
}

SCSS

$custom: #643cad;
$custom-light: #9674c6;
$custom-dark: #000000;

JSON

{
  "hex": "#643cad",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 173
  },
  "hsl": {
    "h": 261.239,
    "s": 48.498,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46601,
    "c": 0.17142,
    "h": 295.2
  },
  "luminance": 0.08958
}

Semantic roles & 50–950 ramp

primary

#643CAD

secondary

#ACC283

accent

#D850A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643CAD

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

Preview Lab → · Contrast checker → · Palette generator →