#643DAA#643DAA

#643DAA is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.5% C 0.166 H 295.7°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#643DAA
RGB	rgb(100, 61, 170)
HSL	hsl(261, 47%, 45%)
HSV	hsv(261, 64%, 67%)
CMYK	cmyk(41.2%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(35.89, 41.53, -52.58)
CIE-LCH	lch(35.89, 67.00, 308.30°)
OKLab	oklab(46.52% 0.0721 -0.1499)
OKLCH	oklch(46.52% 0.166 295.7)
XYZ	xyz(14.1781, 8.9488, 39.0027)
Luminance	0.0895 (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

#643DAA #83AA3D

analogous

#3D4CAA #643DAA #9A3DAA

triadic

#643DAA #AA643D #3DAA64

tetradic

#643DAA #AA3D4C #83AA3D #3DAA9A

square

#643DAA #AA3D4C #83AA3D #3DAA9A

split-complementary

#643DAA #AA9A3D #4CAA3D

monochromatic

#2F1D50 #4A2D7D #643DAA #835FC5 #A68CD6

Accessibility & contrast

On white

7.53

#643DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#643DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DAA

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DAA	#FFFFFF	#000000	##FFFFFF
##643DAA	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#0053A8

Tritanopia (blue-blind)

#52566E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643daa;
/* rgb */ color: rgb(100, 61, 170);
/* oklch */ color: oklch(46.5% 0.166 295.7);

Tailwind

colors: {
  custom: {
    50: '#9575c4',
    500: '#643daa',
    950: '#000000',
  },
}

SCSS

$custom: #643daa;
$custom-light: #9575c4;
$custom-dark: #000000;

JSON

{
  "hex": "#643daa",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 261.468,
    "s": 47.186,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46518,
    "c": 0.16639,
    "h": 295.7
  },
  "luminance": 0.08949
}

Semantic roles & 50–950 ramp

primary

#643DAA

secondary

#AAC082

accent

#D751A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DAA

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

Preview Lab → · Contrast checker → · Palette generator →