#643BA7#643BA7

#643BA7 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 46.0% C 0.165 H 296.8°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#643BA7
RGB	rgb(100, 59, 167)
HSL	hsl(263, 48%, 44%)
HSV	hsv(263, 65%, 65%)
CMYK	cmyk(40.1%, 64.7%, 0%, 34.5%)
CIE-LAB	lab(35.26, 41.82, -51.81)
CIE-LCH	lch(35.26, 66.58, 308.91°)
OKLab	oklab(45.99% 0.0747 -0.1476)
OKLCH	oklch(45.99% 0.165 296.8)
XYZ	xyz(13.7927, 8.6270, 37.4902)
Luminance	0.0863 (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

#643BA7 #7EA73B

analogous

#3B48A7 #643BA7 #9A3BA7

triadic

#643BA7 #A7643B #3BA764

tetradic

#643BA7 #A73B48 #7EA73B #3BA79A

square

#643BA7 #A73B48 #7EA73B #3BA79A

split-complementary

#643BA7 #A79A3B #48A73B

monochromatic

#2E1B4D #492B7A #643BA7 #835AC5 #A588D5

Accessibility & contrast

On white

7.71

#643BA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#643BA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA7

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA7	#FFFFFF	#000000	##FFFFFF
##643BA7	1.00	7.71	2.73	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AA

Deuteranopia (green-blind)

#0052A5

Tritanopia (blue-blind)

#53546B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ba7;
/* rgb */ color: rgb(100, 59, 167);
/* oklch */ color: oklch(46.0% 0.165 296.8);

Tailwind

colors: {
  custom: {
    50: '#9573c2',
    500: '#643ba7',
    950: '#000000',
  },
}

SCSS

$custom: #643ba7;
$custom-light: #9573c2;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba7",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 167
  },
  "hsl": {
    "h": 262.778,
    "s": 47.788,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45993,
    "c": 0.16547,
    "h": 296.8
  },
  "luminance": 0.08627
}

Semantic roles & 50–950 ramp

primary

#643BA7

secondary

#A7BF7F

accent

#D750A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643BA7

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

Preview Lab → · Contrast checker → · Palette generator →