#643EAB#643EAB

#643EAB is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.166 H 295.3°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#643EAB
RGB	rgb(100, 62, 171)
HSL	hsl(261, 47%, 46%)
HSV	hsv(261, 64%, 67%)
CMYK	cmyk(41.5%, 63.7%, 0%, 32.9%)
CIE-LAB	lab(36.17, 41.25, -52.72)
CIE-LCH	lch(36.17, 66.94, 308.04°)
OKLab	oklab(46.74% 0.0709 -0.1504)
OKLCH	oklch(46.74% 0.166 295.3)
XYZ	xyz(14.3269, 9.0945, 39.5208)
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

#643EAB #85AB3E

analogous

#3E4FAB #643EAB #9A3EAB

triadic

#643EAB #AB643E #3EAB64

tetradic

#643EAB #AB3E4F #85AB3E #3EAB9A

square

#643EAB #AB3E4F #85AB3E #3EAB9A

split-complementary

#643EAB #AB9A3E #4FAB3E

monochromatic

#2F1D51 #4A2E7E #643EAB #8461C6 #A78ED6

Accessibility & contrast

On white

7.45

#643EAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#643EAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EAB

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

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

#0056AE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#52576F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643eab;
/* rgb */ color: rgb(100, 62, 171);
/* oklch */ color: oklch(46.7% 0.166 295.3);

Tailwind

colors: {
  custom: {
    50: '#9575c5',
    500: '#643eab',
    950: '#000000',
  },
}

SCSS

$custom: #643eab;
$custom-light: #9575c5;
$custom-dark: #000000;

JSON

{
  "hex": "#643eab",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 171
  },
  "hsl": {
    "h": 260.917,
    "s": 46.781,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46744,
    "c": 0.16625,
    "h": 295.3
  },
  "luminance": 0.09095
}

Semantic roles & 50–950 ramp

primary

#643EAB

secondary

#ACC184

accent

#D651A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EAB

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

Preview Lab → · Contrast checker → · Palette generator →