#643DAD#643DAD

#643DAD is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.170 H 295.0°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#643DAD
RGB	rgb(100, 61, 173)
HSL	hsl(261, 48%, 46%)
HSV	hsv(261, 65%, 68%)
CMYK	cmyk(42.2%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(36.11, 42.35, -54.01)
CIE-LCH	lch(36.11, 68.64, 308.10°)
OKLab	oklab(46.75% 0.0719 -0.1541)
OKLCH	oklch(46.75% 0.17 295)
XYZ	xyz(14.4651, 9.0636, 40.5144)
Luminance	0.0906 (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

#643DAD #86AD3D

analogous

#3D4EAD #643DAD #9C3DAD

triadic

#643DAD #AD643D #3DAD64

tetradic

#643DAD #AD3D4E #86AD3D #3DAD9C

square

#643DAD #AD3D4E #86AD3D #3DAD9C

split-complementary

#643DAD #AD9C3D #4EAD3D

monochromatic

#301D53 #4A2D80 #643DAD #8460C7 #A78DD7

Accessibility & contrast

On white

7.47

#643DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#643DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DAD

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DAD	#FFFFFF	#000000	##FFFFFF
##643DAD	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B0

Deuteranopia (green-blind)

#0053AB

Tritanopia (blue-blind)

#51576F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643dad;
/* rgb */ color: rgb(100, 61, 173);
/* oklch */ color: oklch(46.7% 0.170 295.0);

Tailwind

colors: {
  custom: {
    50: '#9675c6',
    500: '#643dad',
    950: '#000000',
  },
}

SCSS

$custom: #643dad;
$custom-light: #9675c6;
$custom-dark: #000000;

JSON

{
  "hex": "#643dad",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 260.893,
    "s": 47.863,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46748,
    "c": 0.17007,
    "h": 295
  },
  "luminance": 0.09064
}

Semantic roles & 50–950 ramp

primary

#643DAD

secondary

#ACC284

accent

#D750A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DAD

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

Preview Lab → · Contrast checker → · Palette generator →