#643EAA#643EAA

#643EAA is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.165 H 295.5°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#643EAA
RGB	rgb(100, 62, 170)
HSL	hsl(261, 47%, 45%)
HSV	hsv(261, 64%, 67%)
CMYK	cmyk(41.2%, 63.5%, 0%, 33.3%)
CIE-LAB	lab(36.09, 40.97, -52.25)
CIE-LCH	lch(36.09, 66.39, 308.10°)
OKLab	oklab(46.67% 0.071 -0.1489)
OKLCH	oklch(46.67% 0.165 295.5)
XYZ	xyz(14.2319, 9.0565, 39.0207)
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

#643EAA #84AA3E

analogous

#3E4EAA #643EAA #9A3EAA

triadic

#643EAA #AA643E #3EAA64

tetradic

#643EAA #AA3E4E #84AA3E #3EAA9A

square

#643EAA #AA3E4E #84AA3E #3EAA9A

split-complementary

#643EAA #AA9A3E #4EAA3E

monochromatic

#2F1D50 #4A2E7D #643EAA #8460C5 #A68DD5

Accessibility & contrast

On white

7.47

#643EAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#643EAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EAA

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EAA	#FFFFFF	#000000	##FFFFFF
##643EAA	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)

#0056AD

Deuteranopia (green-blind)

#0053A8

Tritanopia (blue-blind)

#52566E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643eaa;
/* rgb */ color: rgb(100, 62, 170);
/* oklch */ color: oklch(46.7% 0.165 295.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#643eaa",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 170
  },
  "hsl": {
    "h": 261.111,
    "s": 46.552,
    "l": 45.49
  },
  "oklch": {
    "l": 0.46669,
    "c": 0.16501,
    "h": 295.5
  },
  "luminance": 0.09057
}

Semantic roles & 50–950 ramp

primary

#643EAA

secondary

#ABC084

accent

#D652A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EAA

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

Preview Lab → · Contrast checker → · Palette generator →