#643AB8#643AB8

#643AB8 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.2% C 0.187 H 293.2°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#643AB8
RGB	rgb(100, 58, 184)
HSL	hsl(260, 52%, 47%)
HSV	hsv(260, 68%, 72%)
CMYK	cmyk(45.7%, 68.5%, 0%, 27.8%)
CIE-LAB	lab(36.36, 47.01, -60.12)
CIE-LCH	lch(36.36, 76.32, 308.02°)
OKLab	oklab(47.2% 0.0736 -0.1721)
OKLCH	oklch(47.2% 0.187 293.2)
XYZ	xyz(15.4179, 9.1957, 46.3007)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.88

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AB8 #8EB83A

analogous

#3A4FB8 #643AB8 #A33AB8

triadic

#643AB8 #B8643A #3AB864

tetradic

#643AB8 #B83A4F #8EB83A #3AB8A3

square

#643AB8 #B83A4F #8EB83A #3AB8A3

split-complementary

#643AB8 #B8A33A #4FB83A

monochromatic

#311D5B #4B2B89 #643AB8 #8662CD #AA90DC

Accessibility & contrast

On white

7.40

#643AB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#643AB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AB8

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AB8	#FFFFFF	#000000	##FFFFFF
##643AB8	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BC

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#4B5974

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643ab8;
/* rgb */ color: rgb(100, 58, 184);
/* oklch */ color: oklch(47.2% 0.187 293.2);

Tailwind

colors: {
  custom: {
    50: '#9773ce',
    500: '#643ab8',
    950: '#000000',
  },
}

SCSS

$custom: #643ab8;
$custom-light: #9773ce;
$custom-dark: #000000;

JSON

{
  "hex": "#643ab8",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 184
  },
  "hsl": {
    "h": 260,
    "s": 52.066,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47195,
    "c": 0.18718,
    "h": 293.2
  },
  "luminance": 0.09196
}

Semantic roles & 50–950 ramp

primary

#643AB8

secondary

#B2C787

accent

#DC4CAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643AB8

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

Preview Lab → · Contrast checker → · Palette generator →