#643CB7#643CB7

#643CB7 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.4% C 0.183 H 293.0°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#643CB7
RGB	rgb(100, 60, 183)
HSL	hsl(260, 51%, 48%)
HSV	hsv(260, 67%, 72%)
CMYK	cmyk(45.4%, 67.2%, 0%, 28.2%)
CIE-LAB	lab(36.67, 45.66, -59.03)
CIE-LCH	lch(36.67, 74.63, 307.72°)
OKLab	oklab(47.39% 0.0717 -0.1689)
OKLCH	oklch(47.39% 0.184 293)
XYZ	xyz(15.4163, 9.3595, 45.7849)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.74

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CB7 #8FB73C

analogous

#3C52B7 #643CB7 #A13CB7

triadic

#643CB7 #B7643C #3CB764

tetradic

#643CB7 #B73C52 #8FB73C #3CB7A1

square

#643CB7 #B73C52 #8FB73C #3CB7A1

split-complementary

#643CB7 #B7A13C #52B73C

monochromatic

#321E5B #4B2D89 #643CB7 #8664CC #AA92DB

Accessibility & contrast

On white

7.31

#643CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#643CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CB7

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CB7	#FFFFFF	#000000	##FFFFFF
##643CB7	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BB

Deuteranopia (green-blind)

#0054B4

Tritanopia (blue-blind)

#4C5A74

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643cb7;
/* rgb */ color: rgb(100, 60, 183);
/* oklch */ color: oklch(47.4% 0.183 293.0);

Tailwind

colors: {
  custom: {
    50: '#9774cd',
    500: '#643cb7',
    950: '#000000',
  },
}

SCSS

$custom: #643cb7;
$custom-light: #9774cd;
$custom-dark: #000000;

JSON

{
  "hex": "#643cb7",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 183
  },
  "hsl": {
    "h": 259.512,
    "s": 50.617,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47392,
    "c": 0.1835,
    "h": 293
  },
  "luminance": 0.0936
}

Semantic roles & 50–950 ramp

primary

#643CB7

secondary

#B2C688

accent

#DA4EAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643CB7

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

Preview Lab → · Contrast checker → · Palette generator →