#643AA3#643AA3

#643AA3 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.5% C 0.162 H 298.1°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#643AA3
RGB	rgb(100, 58, 163)
HSL	hsl(264, 48%, 43%)
HSV	hsv(264, 64%, 64%)
CMYK	cmyk(38.7%, 64.4%, 0%, 36.1%)
CIE-LAB	lab(34.76, 41.29, -50.21)
CIE-LCH	lch(34.76, 65.00, 309.43°)
OKLab	oklab(45.54% 0.0762 -0.1429)
OKLCH	oklch(45.54% 0.162 298.1)
XYZ	xyz(13.3778, 8.3796, 35.5558)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643AA3 #79A33A

analogous

#3A44A3 #643AA3 #983AA3

triadic

#643AA3 #A3643A #3AA364

tetradic

#643AA3 #A33A44 #79A33A #3AA398

square

#643AA3 #A33A44 #79A33A #3AA398

split-complementary

#643AA3 #A3983A #44A33A

monochromatic

#2D1A49 #482A76 #643AA3 #8257C3 #A484D3

Accessibility & contrast

On white

7.85

#643AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA3

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA3	#FFFFFF	#000000	##FFFFFF
##643AA3	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A6

Deuteranopia (green-blind)

#0051A1

Tritanopia (blue-blind)

#555269

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643aa3;
/* rgb */ color: rgb(100, 58, 163);
/* oklch */ color: oklch(45.5% 0.162 298.1);

Tailwind

colors: {
  custom: {
    50: '#9573bf',
    500: '#643aa3',
    950: '#000000',
  },
}

SCSS

$custom: #643aa3;
$custom-light: #9573bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa3",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 163
  },
  "hsl": {
    "h": 264,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45543,
    "c": 0.16199,
    "h": 298.1
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary

#643AA3

secondary

#A3BD7C

accent

#D751A1

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643AA3

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

Preview Lab → · Contrast checker → · Palette generator →