#643CB8#643CB8

#643CB8 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.5% C 0.185 H 292.8°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#643CB8
RGB	rgb(100, 60, 184)
HSL	hsl(259, 51%, 48%)
HSV	hsv(259, 67%, 72%)
CMYK	cmyk(45.7%, 67.4%, 0%, 27.8%)
CIE-LAB	lab(36.75, 45.94, -59.49)
CIE-LCH	lch(36.75, 75.17, 307.68°)
OKLab	oklab(47.47% 0.0716 -0.1703)
OKLCH	oklch(47.47% 0.185 292.8)
XYZ	xyz(15.5207, 9.4012, 46.3350)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.61

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CB8 #90B83C

analogous

#3C52B8 #643CB8 #A23CB8

triadic

#643CB8 #B8643C #3CB864

tetradic

#643CB8 #B83C52 #90B83C #3CB8A2

square

#643CB8 #B83C52 #90B83C #3CB8A2

split-complementary

#643CB8 #B8A23C #52B83C

monochromatic

#321E5C #4B2D8A #643CB8 #8665CD #AA93DC

Accessibility & contrast

On white

7.29

#643CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#643CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CB8

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CB8	#FFFFFF	#000000	##FFFFFF
##643CB8	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#0054B5

Tritanopia (blue-blind)

#4B5A75

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643cb8;
/* rgb */ color: rgb(100, 60, 184);
/* oklch */ color: oklch(47.5% 0.185 292.8);

Tailwind

colors: {
  custom: {
    50: '#9774ce',
    500: '#643cb8',
    950: '#000000',
  },
}

SCSS

$custom: #643cb8;
$custom-light: #9774ce;
$custom-dark: #000000;

JSON

{
  "hex": "#643cb8",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 184
  },
  "hsl": {
    "h": 259.355,
    "s": 50.82,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47472,
    "c": 0.1847,
    "h": 292.8
  },
  "luminance": 0.09402
}

Semantic roles & 50–950 ramp

primary

#643CB8

secondary

#B3C789

accent

#DA4DAD

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643CB8

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

Preview Lab → · Contrast checker → · Palette generator →