#643CAC#643CAC

#643CAC is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.5% C 0.170 H 295.4°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#643CAC
RGB	rgb(100, 60, 172)
HSL	hsl(261, 48%, 45%)
HSV	hsv(261, 65%, 67%)
CMYK	cmyk(41.9%, 65.1%, 0%, 32.5%)
CIE-LAB	lab(35.83, 42.63, -53.87)
CIE-LCH	lch(35.83, 68.70, 308.36°)
OKLab	oklab(46.52% 0.0731 -0.1537)
OKLCH	oklch(46.52% 0.17 295.4)
XYZ	xyz(14.3158, 8.9193, 39.9891)
Luminance	0.0892 (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

#643CAC #84AC3C

analogous

#3C4CAC #643CAC #9C3CAC

triadic

#643CAC #AC643C #3CAC64

tetradic

#643CAC #AC3C4C #84AC3C #3CAC9C

square

#643CAC #AC3C4C #84AC3C #3CAC9C

split-complementary

#643CAC #AC9C3C #4CAC3C

monochromatic

#2F1C51 #4A2C7F #643CAC #845EC7 #A68CD7

Accessibility & contrast

On white

7.54

#643CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#643CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CAC

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CAC	#FFFFFF	#000000	##FFFFFF
##643CAC	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AF

Deuteranopia (green-blind)

#0053AA

Tritanopia (blue-blind)

#51566E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643cac;
/* rgb */ color: rgb(100, 60, 172);
/* oklch */ color: oklch(46.5% 0.170 295.4);

Tailwind

colors: {
  custom: {
    50: '#9674c5',
    500: '#643cac',
    950: '#000000',
  },
}

SCSS

$custom: #643cac;
$custom-light: #9674c5;
$custom-dark: #000000;

JSON

{
  "hex": "#643cac",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 172
  },
  "hsl": {
    "h": 261.429,
    "s": 48.276,
    "l": 45.49
  },
  "oklch": {
    "l": 0.46524,
    "c": 0.17021,
    "h": 295.4
  },
  "luminance": 0.0892
}

Semantic roles & 50–950 ramp

primary

#643CAC

secondary

#ABC182

accent

#D850A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643CAC

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

Preview Lab → · Contrast checker → · Palette generator →