#643AD3#643AD3

#643AD3 is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.5% C 0.218 H 288.2°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#643AD3
RGB	rgb(100, 58, 211)
HSL	hsl(256, 63%, 53%)
HSV	hsv(256, 73%, 83%)
CMYK	cmyk(52.6%, 72.5%, 0%, 17.3%)
CIE-LAB	lab(38.62, 54.47, -72.18)
CIE-LCH	lch(38.62, 90.43, 307.04°)
OKLab	oklab(49.5% 0.0684 -0.2075)
OKLCH	oklch(49.5% 0.218 288.2)
XYZ	xyz(18.5230, 10.4377, 62.6540)
Luminance	0.1044 (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

#643AD3 #A9D33A

analogous

#3A5CD3 #643AD3 #B13AD3

triadic

#643AD3 #D3643A #3AD364

tetradic

#643AD3 #D33A5C #A9D33A #3AD3B1

square

#643AD3 #D33A5C #A9D33A #3AD3B1

split-complementary

#643AD3 #D3B13A #5CD33A

monochromatic

#341B78 #4A26AA #643AD3 #8B6CDE #B39EE9

Accessibility & contrast

On white

6.80

#643AD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#643AD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643AD3

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AD3	#FFFFFF	#000000	##FFFFFF
##643AD3	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED7

Deuteranopia (green-blind)

#0057D0

Tritanopia (blue-blind)

#396383

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643ad3;
/* rgb */ color: rgb(100, 58, 211);
/* oklch */ color: oklch(49.5% 0.218 288.2);

Tailwind

colors: {
  custom: {
    50: '#9b74e2',
    500: '#643ad3',
    950: '#000000',
  },
}

SCSS

$custom: #643ad3;
$custom-light: #9b74e2;
$custom-dark: #000000;

JSON

{
  "hex": "#643ad3",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 211
  },
  "hsl": {
    "h": 256.471,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49498,
    "c": 0.21847,
    "h": 288.2
  },
  "luminance": 0.10439
}

Semantic roles & 50–950 ramp

primary

#643AD3

secondary

#C3D693

accent

#E741B9

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0815

muted

#7F7B84

Preview Lab

Preview with #643AD3

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

Preview Lab → · Contrast checker → · Palette generator →