#643CAE#643CAE

#643CAE is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.7% C 0.173 H 295.0°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#643CAE
RGB	rgb(100, 60, 174)
HSL	hsl(261, 49%, 46%)
HSV	hsv(261, 66%, 68%)
CMYK	cmyk(42.5%, 65.5%, 0%, 31.8%)
CIE-LAB	lab(35.98, 43.18, -54.82)
CIE-LCH	lch(35.98, 69.78, 308.23°)
OKLab	oklab(46.68% 0.0729 -0.1565)
OKLCH	oklch(46.68% 0.173 295)
XYZ	xyz(14.5093, 8.9967, 41.0083)
Luminance	0.0900 (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

#643CAE #86AE3C

analogous

#3C4DAE #643CAE #9D3CAE

triadic

#643CAE #AE643C #3CAE64

tetradic

#643CAE #AE3C4D #86AE3C #3CAE9D

square

#643CAE #AE3C4D #86AE3C #3CAE9D

split-complementary

#643CAE #AE9D3C #4DAE3C

monochromatic

#301D53 #4A2C80 #643CAE #845FC8 #A78DD8

Accessibility & contrast

On white

7.50

#643CAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#643CAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CAE

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CAE	#FFFFFF	#000000	##FFFFFF
##643CAE	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B2

Deuteranopia (green-blind)

#0053AC

Tritanopia (blue-blind)

#50576F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643cae;
/* rgb */ color: rgb(100, 60, 174);
/* oklch */ color: oklch(46.7% 0.173 295.0);

Tailwind

colors: {
  custom: {
    50: '#9674c7',
    500: '#643cae',
    950: '#000000',
  },
}

SCSS

$custom: #643cae;
$custom-light: #9674c7;
$custom-dark: #000000;

JSON

{
  "hex": "#643cae",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 174
  },
  "hsl": {
    "h": 261.053,
    "s": 48.718,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46679,
    "c": 0.17264,
    "h": 295
  },
  "luminance": 0.08997
}

Semantic roles & 50–950 ramp

primary

#643CAE

secondary

#ACC283

accent

#D850A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643CAE

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

Preview Lab → · Contrast checker → · Palette generator →