#643EA7#643EA7

#643EA7 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.161 H 296.2°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#643EA7
RGB	rgb(100, 62, 167)
HSL	hsl(262, 46%, 45%)
HSV	hsv(262, 63%, 65%)
CMYK	cmyk(40.1%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(35.88, 40.15, -50.80)
CIE-LCH	lch(35.88, 64.75, 308.32°)
OKLab	oklab(46.44% 0.0712 -0.1447)
OKLCH	oklch(46.44% 0.161 296.2)
XYZ	xyz(13.9514, 8.9443, 37.5431)
Luminance	0.0895 (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

#643EA7 #81A73E

analogous

#3E4DA7 #643EA7 #993EA7

triadic

#643EA7 #A7643E #3EA764

tetradic

#643EA7 #A73E4D #81A73E #3EA799

square

#643EA7 #A73E4D #81A73E #3EA799

split-complementary

#643EA7 #A7993E #4DA73E

monochromatic

#2F1D4E #492D7A #643EA7 #835FC3 #A68BD4

Accessibility & contrast

On white

7.53

#643EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#643EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA7

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA7	#FFFFFF	#000000	##FFFFFF
##643EA7	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AA

Deuteranopia (green-blind)

#0153A5

Tritanopia (blue-blind)

#53556C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ea7;
/* rgb */ color: rgb(100, 62, 167);
/* oklch */ color: oklch(46.4% 0.161 296.2);

Tailwind

colors: {
  custom: {
    50: '#9575c2',
    500: '#643ea7',
    950: '#000000',
  },
}

SCSS

$custom: #643ea7;
$custom-light: #9575c2;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea7",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 261.714,
    "s": 45.852,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46443,
    "c": 0.16128,
    "h": 296.2
  },
  "luminance": 0.08945
}

Semantic roles & 50–950 ramp

primary

#643EA7

secondary

#A9BF82

accent

#D652A6

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA7

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

Preview Lab → · Contrast checker → · Palette generator →