#643EA6#643EA6

#643EA6 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.160 H 296.5°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#643EA6
RGB	rgb(100, 62, 166)
HSL	hsl(262, 46%, 45%)
HSV	hsv(262, 63%, 65%)
CMYK	cmyk(39.8%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(35.81, 39.87, -50.32)
CIE-LCH	lch(35.81, 64.20, 308.39°)
OKLab	oklab(46.37% 0.0713 -0.1433)
OKLCH	oklch(46.37% 0.16 296.5)
XYZ	xyz(13.8593, 8.9075, 37.0581)
Luminance	0.0891 (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

#643EA6 #80A63E

analogous

#3E4CA6 #643EA6 #983EA6

triadic

#643EA6 #A6643E #3EA664

tetradic

#643EA6 #A63E4C #80A63E #3EA698

square

#643EA6 #A63E4C #80A63E #3EA698

split-complementary

#643EA6 #A6983E #4CA63E

monochromatic

#2E1D4D #492D79 #643EA6 #835EC3 #A58BD4

Accessibility & contrast

On white

7.55

#643EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#643EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA6

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA6	#FFFFFF	#000000	##FFFFFF
##643EA6	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A9

Deuteranopia (green-blind)

#0453A4

Tritanopia (blue-blind)

#54556C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ea6;
/* rgb */ color: rgb(100, 62, 166);
/* oklch */ color: oklch(46.4% 0.160 296.5);

Tailwind

colors: {
  custom: {
    50: '#9575c1',
    500: '#643ea6',
    950: '#000000',
  },
}

SCSS

$custom: #643ea6;
$custom-light: #9575c1;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea6",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 261.923,
    "s": 45.614,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46369,
    "c": 0.16004,
    "h": 296.5
  },
  "luminance": 0.08908
}

Semantic roles & 50–950 ramp

primary

#643EA6

secondary

#A8BE82

accent

#D553A6

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA6

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

Preview Lab → · Contrast checker → · Palette generator →