#643FA3#643FA3

#643FA3 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.3% C 0.155 H 297.0°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#643FA3
RGB	rgb(100, 63, 163)
HSL	hsl(262, 44%, 44%)
HSV	hsv(262, 61%, 64%)
CMYK	cmyk(38.7%, 61.3%, 0%, 36.1%)
CIE-LAB	lab(35.81, 38.48, -48.52)
CIE-LCH	lch(35.81, 61.92, 308.42°)
OKLab	oklab(46.3% 0.0703 -0.138)
OKLCH	oklch(46.3% 0.155 297)
XYZ	xyz(13.6422, 8.9085, 35.6440)
Luminance	0.0891 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FA3 #7EA33F

analogous

#3F4CA3 #643FA3 #963FA3

triadic

#643FA3 #A3643F #3FA364

tetradic

#643FA3 #A33F4C #7EA33F #3FA396

square

#643FA3 #A33F4C #7EA33F #3FA396

split-complementary

#643FA3 #A3963F #4CA33F

monochromatic

#2E1D4B #492E77 #643FA3 #835EC1 #A58AD2

Accessibility & contrast

On white

7.55

#643FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#643FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FA3

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FA3	#FFFFFF	#000000	##FFFFFF
##643FA3	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)

#0055A6

Deuteranopia (green-blind)

#1253A1

Tritanopia (blue-blind)

#55556B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643fa3;
/* rgb */ color: rgb(100, 63, 163);
/* oklch */ color: oklch(46.3% 0.155 297.0);

Tailwind

colors: {
  custom: {
    50: '#9576bf',
    500: '#643fa3',
    950: '#000000',
  },
}

SCSS

$custom: #643fa3;
$custom-light: #9576bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643fa3",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 163
  },
  "hsl": {
    "h": 262.2,
    "s": 44.248,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46303,
    "c": 0.15483,
    "h": 297
  },
  "luminance": 0.08909
}

Semantic roles & 50–950 ramp

primary

#643FA3

secondary

#A7BD81

accent

#D454A5

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643FA3

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

Preview Lab → · Contrast checker → · Palette generator →