#643DAE#643DAE

#643DAE is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.8% C 0.171 H 294.8°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#643DAE
RGB	rgb(100, 61, 174)
HSL	hsl(261, 48%, 46%)
HSV	hsv(261, 65%, 68%)
CMYK	cmyk(42.5%, 64.9%, 0%, 31.8%)
CIE-LAB	lab(36.18, 42.63, -54.49)
CIE-LCH	lch(36.18, 69.18, 308.04°)
OKLab	oklab(46.83% 0.0718 -0.1555)
OKLCH	oklch(46.83% 0.171 294.8)
XYZ	xyz(14.5622, 9.1025, 41.0259)
Luminance	0.0910 (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

#643DAE #87AE3D

analogous

#3D4EAE #643DAE #9C3DAE

triadic

#643DAE #AE643D #3DAE64

tetradic

#643DAE #AE3D4E #87AE3D #3DAE9C

square

#643DAE #AE3D4E #87AE3D #3DAE9C

split-complementary

#643DAE #AE9C3D #4EAE3D

monochromatic

#301D53 #4A2D81 #643DAE #8461C8 #A78ED7

Accessibility & contrast

On white

7.45

#643DAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#643DAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DAE

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DAE	#FFFFFF	#000000	##FFFFFF
##643DAE	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B2

Deuteranopia (green-blind)

#0053AC

Tritanopia (blue-blind)

#505770

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643dae;
/* rgb */ color: rgb(100, 61, 174);
/* oklch */ color: oklch(46.8% 0.171 294.8);

Tailwind

colors: {
  custom: {
    50: '#9675c7',
    500: '#643dae',
    950: '#000000',
  },
}

SCSS

$custom: #643dae;
$custom-light: #9675c7;
$custom-dark: #000000;

JSON

{
  "hex": "#643dae",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 174
  },
  "hsl": {
    "h": 260.708,
    "s": 48.085,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46825,
    "c": 0.1713,
    "h": 294.8
  },
  "luminance": 0.09103
}

Semantic roles & 50–950 ramp

primary

#643DAE

secondary

#ADC285

accent

#D850A9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DAE

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

Preview Lab → · Contrast checker → · Palette generator →