#643FC3#643FC3

#643FC3 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.8% C 0.194 H 290.2°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#643FC3
RGB	rgb(100, 63, 195)
HSL	hsl(257, 52%, 51%)
HSV	hsv(257, 68%, 76%)
CMYK	cmyk(48.7%, 67.7%, 0%, 23.5%)
CIE-LAB	lab(38.21, 47.41, -63.57)
CIE-LCH	lch(38.21, 79.30, 306.71°)
OKLab	oklab(48.79% 0.067 -0.1822)
OKLCH	oklch(48.79% 0.194 290.2)
XYZ	xyz(16.8806, 10.2038, 52.6993)
Luminance	0.1020 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 0.86

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FC3 #9EC33F

analogous

#3F5CC3 #643FC3 #A63FC3

triadic

#643FC3 #C3643F #3FC364

tetradic

#643FC3 #C33F5C #9EC33F #3FC3A6

square

#643FC3 #C33F5C #9EC33F #3FC3A6

split-complementary

#643FC3 #C3A63F #5CC33F

monochromatic

#342067 #4C2F96 #643FC3 #8A6ED2 #AF9CE0

Accessibility & contrast

On white

6.91

#643FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#643FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FC3

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FC3	#FFFFFF	#000000	##FFFFFF
##643FC3	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#0057C0

Tritanopia (blue-blind)

#44607C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643fc3;
/* rgb */ color: rgb(100, 63, 195);
/* oklch */ color: oklch(48.8% 0.194 290.2);

Tailwind

colors: {
  custom: {
    50: '#9877d6',
    500: '#643fc3',
    950: '#000000',
  },
}

SCSS

$custom: #643fc3;
$custom-light: #9877d6;
$custom-dark: #000000;

JSON

{
  "hex": "#643fc3",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 195
  },
  "hsl": {
    "h": 256.818,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48792,
    "c": 0.19416,
    "h": 290.2
  },
  "luminance": 0.10204
}

Semantic roles & 50–950 ramp

primary

#643FC3

secondary

#BCCC92

accent

#DC4CB3

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643FC3

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

Preview Lab → · Contrast checker → · Palette generator →