#643FC4#643FC4

#643FC4 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.9% C 0.195 H 290.0°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#643FC4
RGB	rgb(100, 63, 196)
HSL	hsl(257, 53%, 51%)
HSV	hsv(257, 68%, 77%)
CMYK	cmyk(49%, 67.9%, 0%, 23.1%)
CIE-LAB	lab(38.29, 47.69, -64.02)
CIE-LCH	lch(38.29, 79.83, 306.68°)
OKLab	oklab(48.88% 0.0668 -0.1836)
OKLCH	oklch(48.88% 0.195 290)
XYZ	xyz(16.9940, 10.2492, 53.2967)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 0.76

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FC4 #9FC43F

analogous

#3F5CC4 #643FC4 #A73FC4

triadic

#643FC4 #C4643F #3FC464

tetradic

#643FC4 #C43F5C #9FC43F #3FC4A7

square

#643FC4 #C43F5C #9FC43F #3FC4A7

split-complementary

#643FC4 #C4A73F #5CC43F

monochromatic

#342068 #4C2E97 #643FC4 #8A6ED2 #B09DE1

Accessibility & contrast

On white

6.89

#643FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#643FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FC4

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FC4	#FFFFFF	#000000	##FFFFFF
##643FC4	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC8

Deuteranopia (green-blind)

#0057C1

Tritanopia (blue-blind)

#44607C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643fc4;
/* rgb */ color: rgb(100, 63, 196);
/* oklch */ color: oklch(48.9% 0.195 290.0);

Tailwind

colors: {
  custom: {
    50: '#9877d7',
    500: '#643fc4',
    950: '#000000',
  },
}

SCSS

$custom: #643fc4;
$custom-light: #9877d7;
$custom-dark: #000000;

JSON

{
  "hex": "#643fc4",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 196
  },
  "hsl": {
    "h": 256.692,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48875,
    "c": 0.19536,
    "h": 290
  },
  "luminance": 0.1025
}

Semantic roles & 50–950 ramp

primary

#643FC4

secondary

#BCCD92

accent

#DC4BB4

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643FC4

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

Preview Lab → · Contrast checker → · Palette generator →