#643FAA#643FAA

#643FAA is a mid, vivid violet. Relative luminance 0.092; OKLCH L 46.8% C 0.164 H 295.3°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#643FAA
RGB	rgb(100, 63, 170)
HSL	hsl(261, 46%, 46%)
HSV	hsv(261, 63%, 67%)
CMYK	cmyk(41.2%, 62.9%, 0%, 33.3%)
CIE-LAB	lab(36.30, 40.41, -51.91)
CIE-LCH	lch(36.30, 65.78, 307.90°)
OKLab	oklab(46.82% 0.0698 -0.1479)
OKLCH	oklch(46.82% 0.164 295.3)
XYZ	xyz(14.2868, 9.1663, 39.0390)
Luminance	0.0917 (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

#643FAA #85AA3F

analogous

#3F4FAA #643FAA #993FAA

triadic

#643FAA #AA643F #3FAA64

tetradic

#643FAA #AA3F4F #85AA3F #3FAA99

square

#643FAA #AA3F4F #85AA3F #3FAA99

split-complementary

#643FAA #AA993F #4FAA3F

monochromatic

#2F1E51 #4A2E7D #643FAA #8462C5 #A78ED5

Accessibility & contrast

On white

7.41

#643FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#643FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FAA

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FAA	#FFFFFF	#000000	##FFFFFF
##643FAA	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AD

Deuteranopia (green-blind)

#0054A8

Tritanopia (blue-blind)

#52576E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643faa;
/* rgb */ color: rgb(100, 63, 170);
/* oklch */ color: oklch(46.8% 0.164 295.3);

Tailwind

colors: {
  custom: {
    50: '#9576c4',
    500: '#643faa',
    950: '#000000',
  },
}

SCSS

$custom: #643faa;
$custom-light: #9576c4;
$custom-dark: #000000;

JSON

{
  "hex": "#643faa",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 170
  },
  "hsl": {
    "h": 260.748,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46821,
    "c": 0.16361,
    "h": 295.3
  },
  "luminance": 0.09167
}

Semantic roles & 50–950 ramp

primary

#643FAA

secondary

#ACC085

accent

#D652A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643FAA

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

Preview Lab → · Contrast checker → · Palette generator →