#643CA5#643CA5

#643CA5 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.0% C 0.162 H 297.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#643CA5
RGB	rgb(100, 60, 165)
HSL	hsl(263, 47%, 44%)
HSV	hsv(263, 64%, 65%)
CMYK	cmyk(39.4%, 63.6%, 0%, 35.3%)
CIE-LAB	lab(35.32, 40.72, -50.51)
CIE-LCH	lch(35.32, 64.88, 308.88°)
OKLab	oklab(45.99% 0.0737 -0.1438)
OKLCH	oklch(45.99% 0.162 297.1)
XYZ	xyz(13.6612, 8.6574, 36.5413)
Luminance	0.0866 (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

#643CA5 #7DA53C

analogous

#3C49A5 #643CA5 #993CA5

triadic

#643CA5 #A5643C #3CA564

tetradic

#643CA5 #A53C49 #7DA53C #3CA599

square

#643CA5 #A53C49 #7DA53C #3CA599

split-complementary

#643CA5 #A5993C #49A53C

monochromatic

#2E1B4B #492C78 #643CA5 #835BC3 #A588D4

Accessibility & contrast

On white

7.69

#643CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#643CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA5

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA5	#FFFFFF	#000000	##FFFFFF
##643CA5	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A8

Deuteranopia (green-blind)

#0052A3

Tritanopia (blue-blind)

#54546B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ca5;
/* rgb */ color: rgb(100, 60, 165);
/* oklch */ color: oklch(46.0% 0.162 297.1);

Tailwind

colors: {
  custom: {
    50: '#9574c0',
    500: '#643ca5',
    950: '#000000',
  },
}

SCSS

$custom: #643ca5;
$custom-light: #9574c0;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca5",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 165
  },
  "hsl": {
    "h": 262.857,
    "s": 46.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.45991,
    "c": 0.16163,
    "h": 297.1
  },
  "luminance": 0.08658
}

Semantic roles & 50–950 ramp

primary

#643CA5

secondary

#A6BE7F

accent

#D651A4

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA5

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

Preview Lab → · Contrast checker → · Palette generator →