#643AB6#643AB6

#643AB6 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 47.0% C 0.185 H 293.6°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#643AB6
RGB	rgb(100, 58, 182)
HSL	hsl(260, 52%, 47%)
HSV	hsv(260, 68%, 71%)
CMYK	cmyk(45.1%, 68.1%, 0%, 28.6%)
CIE-LAB	lab(36.20, 46.46, -59.20)
CIE-LCH	lch(36.20, 75.25, 308.12°)
OKLab	oklab(47.03% 0.0739 -0.1694)
OKLCH	oklch(47.03% 0.185 293.6)
XYZ	xyz(15.2098, 9.1124, 45.2044)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.12

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AB6 #8CB63A

analogous

#3A4EB6 #643AB6 #A23AB6

triadic

#643AB6 #B6643A #3AB664

tetradic

#643AB6 #B63A4E #8CB63A #3AB6A2

square

#643AB6 #B63A4E #8CB63A #3AB6A2

split-complementary

#643AB6 #B6A23A #4EB63A

monochromatic

#311C59 #4B2B88 #643AB6 #8561CD #A98FDB

Accessibility & contrast

On white

7.44

#643AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#643AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AB6

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AB6	#FFFFFF	#000000	##FFFFFF
##643AB6	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BA

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#4C5873

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643ab6;
/* rgb */ color: rgb(100, 58, 182);
/* oklch */ color: oklch(47.0% 0.185 293.6);

Tailwind

colors: {
  custom: {
    50: '#9773cd',
    500: '#643ab6',
    950: '#000000',
  },
}

SCSS

$custom: #643ab6;
$custom-light: #9773cd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ab6",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 182
  },
  "hsl": {
    "h": 260.323,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47032,
    "c": 0.18482,
    "h": 293.6
  },
  "luminance": 0.09113
}

Semantic roles & 50–950 ramp

primary

#643AB6

secondary

#B0C686

accent

#DB4DAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643AB6

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

Preview Lab → · Contrast checker → · Palette generator →