#643AD5#643AD5

#643AD5 is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.7% C 0.221 H 287.9°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#643AD5
RGB	rgb(100, 58, 213)
HSL	hsl(256, 65%, 53%)
HSV	hsv(256, 73%, 84%)
CMYK	cmyk(53.1%, 72.8%, 0%, 16.5%)
CIE-LAB	lab(38.79, 55.02, -73.05)
CIE-LCH	lch(38.79, 91.45, 306.99°)
OKLab	oklab(49.68% 0.0679 -0.21)
OKLCH	oklch(49.68% 0.221 287.9)
XYZ	xyz(18.7753, 10.5386, 63.9827)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AD5 #ABD53A

analogous

#3A5DD5 #643AD5 #B13AD5

triadic

#643AD5 #D5643A #3AD564

tetradic

#643AD5 #D53A5D #ABD53A #3AD5B1

square

#643AD5 #D53A5D #ABD53A #3AD5B1

split-complementary

#643AD5 #D5B13A #5DD53A

monochromatic

#341A7A #4A25AD #643AD5 #8C6CE0 #B39FEB

Accessibility & contrast

On white

6.76

#643AD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#643AD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643AD5

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AD5	#FFFFFF	#000000	##FFFFFF
##643AD5	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD9

Deuteranopia (green-blind)

#0057D2

Tritanopia (blue-blind)

#376484

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643ad5;
/* rgb */ color: rgb(100, 58, 213);
/* oklch */ color: oklch(49.7% 0.221 287.9);

Tailwind

colors: {
  custom: {
    50: '#9b74e3',
    500: '#643ad5',
    950: '#000000',
  },
}

SCSS

$custom: #643ad5;
$custom-light: #9b74e3;
$custom-dark: #000000;

JSON

{
  "hex": "#643ad5",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 213
  },
  "hsl": {
    "h": 256.258,
    "s": 64.854,
    "l": 53.137
  },
  "oklch": {
    "l": 0.49676,
    "c": 0.22075,
    "h": 287.9
  },
  "luminance": 0.1054
}

Semantic roles & 50–950 ramp

primary

#643AD5

secondary

#C5D794

accent

#E840BA

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0816

muted

#7F7B84

Preview Lab

Preview with #643AD5

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

Preview Lab → · Contrast checker → · Palette generator →