#643FC0#643FC0

#643FC0 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.5% C 0.191 H 290.7°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#643FC0
RGB	rgb(100, 63, 192)
HSL	hsl(257, 51%, 50%)
HSV	hsv(257, 67%, 75%)
CMYK	cmyk(47.9%, 67.2%, 0%, 24.7%)
CIE-LAB	lab(37.97, 46.56, -62.21)
CIE-LCH	lch(37.97, 77.70, 306.81°)
OKLab	oklab(48.55% 0.0674 -0.1782)
OKLCH	oklch(48.55% 0.191 290.7)
XYZ	xyz(16.5448, 10.0695, 50.9308)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.22

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FC0 #9BC03F

analogous

#3F5BC0 #643FC0 #A43FC0

triadic

#643FC0 #C0643F #3FC064

tetradic

#643FC0 #C03F5B #9BC03F #3FC0A4

square

#643FC0 #C03F5B #9BC03F #3FC0A4

split-complementary

#643FC0 #C0A43F #5BC03F

monochromatic

#342164 #4C3092 #643FC0 #896DCF #AE9BDE

Accessibility & contrast

On white

6.97

#643FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#643FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FC0

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FC0	#FFFFFF	#000000	##FFFFFF
##643FC0	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC4

Deuteranopia (green-blind)

#0056BD

Tritanopia (blue-blind)

#465F7A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643fc0;
/* rgb */ color: rgb(100, 63, 192);
/* oklch */ color: oklch(48.5% 0.191 290.7);

Tailwind

colors: {
  custom: {
    50: '#9877d4',
    500: '#643fc0',
    950: '#000000',
  },
}

SCSS

$custom: #643fc0;
$custom-light: #9877d4;
$custom-dark: #000000;

JSON

{
  "hex": "#643fc0",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 192
  },
  "hsl": {
    "h": 257.209,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.48546,
    "c": 0.19056,
    "h": 290.7
  },
  "luminance": 0.1007
}

Semantic roles & 50–950 ramp

primary

#643FC0

secondary

#BACA91

accent

#DA4EB2

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0E0914

muted

#7E7B83

Preview Lab

Preview with #643FC0

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

Preview Lab → · Contrast checker → · Palette generator →