#643CD0#643CD0

#643CD0 is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.5% C 0.213 H 288.4°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#643CD0
RGB	rgb(100, 60, 208)
HSL	hsl(256, 61%, 53%)
HSV	hsv(256, 71%, 82%)
CMYK	cmyk(51.9%, 71.2%, 0%, 18.4%)
CIE-LAB	lab(38.72, 52.63, -70.29)
CIE-LCH	lch(38.72, 87.81, 306.82°)
OKLab	oklab(49.49% 0.0674 -0.202)
OKLCH	oklch(49.49% 0.213 288.4)
XYZ	xyz(18.2532, 10.4942, 60.7261)
Luminance	0.1050 (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

#643CD0 #A8D03C

analogous

#3C5ED0 #643CD0 #AE3CD0

triadic

#643CD0 #D0643C #3CD064

tetradic

#643CD0 #D03C5E #A8D03C #3CD0AE

square

#643CD0 #D03C5E #A8D03C #3CD0AE

split-complementary

#643CD0 #D0AE3C #5ED03C

monochromatic

#341C75 #4A28A7 #643CD0 #8B6DDC #B29FE8

Accessibility & contrast

On white

6.78

#643CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#643CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643CD0

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CD0	#FFFFFF	#000000	##FFFFFF
##643CD0	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED4

Deuteranopia (green-blind)

#0057CD

Tritanopia (blue-blind)

#3B6382

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643cd0;
/* rgb */ color: rgb(100, 60, 208);
/* oklch */ color: oklch(49.5% 0.213 288.4);

Tailwind

colors: {
  custom: {
    50: '#9a75e0',
    500: '#643cd0',
    950: '#000000',
  },
}

SCSS

$custom: #643cd0;
$custom-light: #9a75e0;
$custom-dark: #000000;

JSON

{
  "hex": "#643cd0",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 208
  },
  "hsl": {
    "h": 256.216,
    "s": 61.157,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49489,
    "c": 0.2129,
    "h": 288.4
  },
  "luminance": 0.10495
}

Semantic roles & 50–950 ramp

primary

#643CD0

secondary

#C3D494

accent

#E444B9

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643CD0

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

Preview Lab → · Contrast checker → · Palette generator →