#643AB9#643AB9

#643AB9 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.3% C 0.188 H 292.9°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#643AB9
RGB	rgb(100, 58, 185)
HSL	hsl(260, 52%, 48%)
HSV	hsv(260, 69%, 73%)
CMYK	cmyk(45.9%, 68.6%, 0%, 27.5%)
CIE-LAB	lab(36.44, 47.28, -60.58)
CIE-LCH	lch(36.44, 76.85, 307.97°)
OKLab	oklab(47.28% 0.0735 -0.1735)
OKLCH	oklch(47.28% 0.188 292.9)
XYZ	xyz(15.5231, 9.2377, 46.8547)
Luminance	0.0924 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.76

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AB9 #8FB93A

analogous

#3A4FB9 #643AB9 #A43AB9

triadic

#643AB9 #B9643A #3AB964

tetradic

#643AB9 #B93A4F #8FB93A #3AB9A4

square

#643AB9 #B93A4F #8FB93A #3AB9A4

split-complementary

#643AB9 #B9A43A #4FB93A

monochromatic

#321D5C #4B2B8A #643AB9 #8662CE #AA91DC

Accessibility & contrast

On white

7.37

#643AB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#643AB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AB9

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AB9	#FFFFFF	#000000	##FFFFFF
##643AB9	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#0053B6

Tritanopia (blue-blind)

#4B5975

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643ab9;
/* rgb */ color: rgb(100, 58, 185);
/* oklch */ color: oklch(47.3% 0.188 292.9);

Tailwind

colors: {
  custom: {
    50: '#9773cf',
    500: '#643ab9',
    950: '#000000',
  },
}

SCSS

$custom: #643ab9;
$custom-light: #9773cf;
$custom-dark: #000000;

JSON

{
  "hex": "#643ab9",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 185
  },
  "hsl": {
    "h": 259.843,
    "s": 52.263,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47276,
    "c": 0.18837,
    "h": 292.9
  },
  "luminance": 0.09238
}

Semantic roles & 50–950 ramp

primary

#643AB9

secondary

#B2C787

accent

#DC4CAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643AB9

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

Preview Lab → · Contrast checker → · Palette generator →